I know this has been asked many times but what size tires would look good on my challenger with 15" rims
235/60 OR 245/60 on the front and 245/60 OR 255/60 on the rear. I am assuming these are 7" wide rims? These are 15x7 on my Road Runner. 235 and 255
Rear springs in the stock location or moved inboard?
I like 235/60 in the front, some guys run the 245/60's bu my cars tend to be a little lower then theirs....
In the rear stock spring location I prefer 255/60... Some guys run 275/60 the width is fine but those are 28" tall, over 2" taller than the front tire so while I like the car to have some rake this can make it a little more than I like...
Springs inboard.. 295/50 without question....
I agree on the 275/60 being to big. That's a really tall tire.
I'm going to say PolyGlas E60X15 :D :Stirring:
I have 15x7 front with 235/60-15 and 15x8 rear with 245/60-15. Suspension is stock. I'm in between stock and T/A diameter for the rear tires.
I've since put 235/60-15 on the rear. Now same diameter all around as E60-15 tire.
Edit: I now have 15x7 police wheels on the car with 235/60-15 front and rear.
I'm running 15x7 all around with 215\60\15 on the front and 275\60\15 on the rear on my AAR, gives it a nice rake like the AAR is supposed to have. They run at 25.2 at the front and 28 at the rear installed with 30 psi.
The original with e60/15 (25.5) at the front and g60\15 (26.4) at the rear.
I wanted to keep the front as close to original for alignment and handling and bigger on the back for the rake look and performance, the smaller the tire on the back the more spin and less straight line traction.
Here's a handy link:
http://www.turbinecar.com/tires.htm
I'm happy with 275/60-15 on the rear and 245/60-15 on the fronts.
About 1 1/2" height difference between the front and back tires.
15x8 rim size on all 4 corners with 4 1/2" back spacing.
Everything fits under the car real nice.
:bigthumb: Sticky :banana: Now lets some different tire sizes!! :takepicture:
I have 275/55 R15 ( Avon CR6ZZ )on the rear and 225/60 R15 on the front.
27" on the rear and 25.7" on the front.
Very happy with these tires
245/15 all the way around on factory 15x7's. Everyone needs to remember the size and look will vary between brands. So keep that in mind.
235/60 on 15x7's all the way around.
17" Torque Thrust II's on my '71 with Nitto 255-50's on the front and 275-50's on the back with a stock rear end, XHD leaf springs. I had to roll the lips on both front and back.
15" Rallye's with 225/60/15 front and 245/60/15 rear, stock springs and suspension
Hankook Ventus V12 245/45/18 and 275/40/18 with US Mag U111 Rambler textured gunmetal grey 18x8 and 18x9.5. The stock spring location gives abut 3/4" room, fits inside the rear quarters with no rolled lips. Fronts also fit perfect, no rolled lips, not rubbing on frame.
Thats good info with pics great :banana: getting ready to buy some tires
Quote from: 1 Wild R/T on October 16, 2017, 09:25:04 AM
Rear springs in the stock location or moved inboard?
I like 235/60 in the front, some guys run the 245/60's bu my cars tend to be a little lower then theirs....
In the rear stock spring location I prefer 255/60... Some guys run 275/60 the width is fine but those are 28" tall, over 2" taller than the front tire so while I like the car to have some rake this can make it a little more than I like...
Springs inboard.. 295/50 without question....
My set-up is stock
Quote from: GrandpaKevin on October 16, 2017, 11:46:04 AM
I'm happy with 275/60-15 on the rear and 245/60-15 on the fronts.
About 1 1/2" height difference between the front and back tires.
15x8 rim size on all 4 corners with 4 1/2" back spacing.
Everything fits under the car real nice.
I'd appreciate it if you could post another shot of your car looking directly at a side view. I like what I see from the perspective in the photo you posted - just curious to see some more. Thanks!
17x8 with 245/45 and 17x9 with 275/40. Car lowered 1 1/2 inch all the way around.
I've always liked the Minilite rims.
ET-III
Fronts: 18x9.5, 5.5 BS Nitto 555 275-35-18
Rear: 18x10, 4.5 BS Nitto 555 285-40-18
Fender lips were rolled by PO.
S60 B-body width rear end.
Ignore the messy garage :)
I've had this look for years. Pretty much stock, instead of the factory bias ply 78's. I'm happy with the 60 series boots.
Fronts: 225x60x14 Kelly Radials
Rears: 245x60x14. Kelly Radials
Always White Letters out, for the period look. Thanks, Al
SuperFormance Mini Lights... 15x8 f/r, 255-60-15 fronts, 275-60-15 rears. Car is lowerd for AX/HPDE/HSAX events. These 15x8 setup is my street/highway rims/tires. Fender lips are flushed and slightly pulled.
Here's my racing setup for SCCA E/SP solo II class racing. Hoosier A6 275-45-16 f/r (yes officer, they are DOT approved, 40-TW) on Centerline X-series lightweight forged aluminum 16x10 rims.
Quote from: shawge on October 18, 2017, 08:49:20 AM
I've always liked the Minilite rims.
ET-III
Fronts: 18x9.5, 5.5 BS Nitto 555 275-35-18
Rear: 18x10, 4.5 BS Nitto 555 285-40-18
Fender lips were rolled by PO.
S60 B-body width rear end.
Ignore the messy garage :)
Looks killer. Any work to the front to get those to fit, sounds like a big tire? If you crank down the torsion bars, are you going to have issues?
Did you need the b-body rear or could have you gotten away with a 1" spring relo? Possibly adjusting offset?
I recently acquired this 73 Challenger. It came with these classic Cragar SS wheels. Rims are 15 x 8 with 4.25" BS. Front tires are 225 and rear are 255. Stock original suspension.
ET wheels LTIII 18x11" on all 4 corners. 315/30/18 up front and 295/40/18 rear Front backspace is 5" rear is 5.5"
B-Body width S60 Dana with DrDiff relocation kit, 1" I think it is. Front fenders required NO modifications what so ever....... :Stirring: :))
Rear fits good with no rubbing unless 2 adults are in the back seat ( very rare, never happens)
Picture of my 15" superlite rims next to new LT III
Back when I was in high school in the 70's Ronnie Sox was the man, so we all went with the Pro Stock look. I had the 10" Cragars and skinny Cragars on my 70 RT and I'm going back with the Pro Stock look on my Cuda build. So 10" Cragars with 275/60R/15 on the back and 4.5" Cragars with 165/80R/15 on the front. Air shocks a must have.
Air shocks here too ! :drooling:
Quote from: anlauto on November 12, 2017, 03:15:43 PM
Air shocks here too ! :drooling:
What a great looking Cuda Al, the color both in and out great stance then top it off with a shaker. :cheers:
Quote from: LinceCuda on November 12, 2017, 04:43:43 PM
Quote from: anlauto on November 12, 2017, 03:15:43 PM
Air shocks here too ! :drooling:
What a great looking Cuda Al, the color both in and out great stance then top it off with a shaker. :cheers:
It's the world famous "Barrelcuda" in it's "day two" mode.... 8)
235X60X15 and 245X60X15. 15X7 rims all around because of the backspace of the torquthrusts and stock E-body rear. I like the road ready look on a Challenger.
Great car Sheldon, i love it! :twothumbsup:
275/60/15 on back with eight inch rims. 235/60/15 with 7 inch rims on front, not sure of backspace but I am about 1/2 an inch from the leafs. Also running air shocks.
Three posts on this page alone about people running air shocks. Thought they were a big no no?
Quote from: dave73chally on November 16, 2017, 11:50:33 AM
Three posts on this page alone about people running air shocks. Thought they were a big no no?
These cars were not meant to run air shocks, which hammer the shock support. They eventually will crack or break the support. You can arc your springs inside of running air shocks, or just by tires that fit. Run them at your own risk. :thumbdown:
Quote from: dave73chally on November 16, 2017, 11:50:33 AM
Three posts on this page alone about people running air shocks. Thought they were a big no no?
They were on my car when I first bought it...... first part to come off too! :iagree:
Quote from: Brads70 on November 16, 2017, 02:26:10 PM
Quote from: dave73chally on November 16, 2017, 11:50:33 AM
Three posts on this page alone about people running air shocks. Thought they were a big no no?
They were on my car when I first bought it...... first part to come off too! :iagree:
Quote from: 303 Mopar on November 16, 2017, 11:55:42 AM
Quote from: dave73chally on November 16, 2017, 11:50:33 AM
Three posts on this page alone about people running air shocks. Thought they were a big no no?
It's for the old school look and I ran air shocks back in the 70's for 4 years straight. The air shocks were already on the car when I got it and who knows how long before me and never a issue or breakage of anything. Now fast forward to 2017 and realize that we only drive our cars how many miles a year???? Yes you can buy or arch your springs and in my opinion it looks like A$$. Just one mans opinion.
These cars were not meant to run air shocks, which hammer the shock support. They eventually will crack or break the support. You can arc your springs inside of running air shocks, or just by tires that fit. Run them at your own risk. :thumbdown:
Quote from: dave73chally on November 16, 2017, 11:50:33 AM
Three posts on this page alone about people running air shocks. Thought they were a big no no?
235 60 15 front,. 255 60 15 rear. Had F60 15 polyglas, got rid of them.
Yes, 15x7. Factory repo wheels,. I will get more pics from the rear this weekend.
Quote from: MOPAR MITCH on October 18, 2017, 11:24:09 AM
SuperFormance Mini Lights... 15x8 f/r, 255-60-15 fronts, 275-60-15 rears. Car is lowerd for AX/HPDE/HSAX events. These 15x8 setup is my street/highway rims/tires. Fender lips are flushed and slightly pulled.
Mitch are those 4 or 4.5 bs on the minilites?
Quote from: Todd489 on December 06, 2017, 06:11:09 PM
235 60 15 front,. 255 60 15 rear. Had F60 15 polyglas, got rid of them.
aI love the look of the TA radial, tire of choice back in the day, back then I could not afford them lol I am going with them on my 70
Tim
Hustlestuff -- my Superlites 15x8 are ~4-3/8" bs; so... they push out an extra ~1/8" towards the fenders.
I also have ET (?) 16x8 (with BFG G-force 255-50-16 f/r).. they have ~4-1/2" bs.
Front: 15x7 with 235/60/15
Rear: 15x8 4.5" bs - 275/60/15
Hothckis leaf springs, hotchkis torsion bars. Car is low, only rubs on a hard bump with passengers in the back.
Wow, i love the look of your car! :bigthumb:
Quote from: Husk Challenger on December 12, 2017, 01:00:24 PM
Wow, i love the look of your car! :bigthumb:
:iagree: Very sinister looking!
Cooper Cobra P225/70R14's on stock Rallye wheels... plain jane cruising 340 auto cuda...
(but I can still rotate the tires, in more ways than one!!!)
:cooldance:
Quote from: Shane Kelley on December 12, 2017, 02:01:21 PM
Quote from: Husk Challenger on December 12, 2017, 01:00:24 PM
Wow, i love the look of your car! :bigthumb:
:iagree: Very sinister looking!
Sinister Great name for this car. :perfect10:
Front Wheels: 15" x 7" w / 3.75" back spacing
Front Tires: P245 / 60R15
Rear Wheels: 15" x 8" w / 4.5" back spacing
Rear Tires: P275 / 60R15
Quote from: Claudia on January 09, 2018, 09:51:47 AM
Front Wheels: 15" x 7" w / 3.75" back spacing
Front Tires: P245 / 60R15
Rear Wheels: 15" x 8" w / 4.5" back spacing
Rear Tires: P275 / 60R15
Maybe its just me but I love the look of the TA radials, tire of choice back in the day, and that is what is going on mine.
Go to TireRack and use their website to see what rims fit and what it looks like on your car.
Not to derail this thread but... Isn't the natural stance of an E-body to sit a little lower in the rear than the front? :thinking:
Hey Tim.....Dave here.....I am looking a changing from the Rally wheel (14") to the Magnum Road wheels (15" x 8").....and using 255/60/15 front and back. Have you got yours yet? I am not in a hurry but just day dreaming a little.........
15x7s and 15x10s 3.75 BS Torque thrusts with Mickey Thompson SRs 15x12 on rear & 15x26.1 on front, Side pic shows different front tire sorry. Custom length Dana With springs move under frames.
Quote from: cordodge on February 25, 2018, 10:19:43 AM
15x7s and 15x10s 3.75 BS Torque thrusts with Mickey Thompson SRs 15x12 on rear & 15x26.1 on front, Side pic shows different front tire sorry. Custom length Dana With springs move under frames.
Still one of my favorite Challengers! :cheers:
Quote from: 303 Mopar on February 25, 2018, 06:12:58 PM
Quote from: cordodge on February 25, 2018, 10:19:43 AM
15x7s and 15x10s 3.75 BS Torque thrusts with Mickey Thompson SRs 15x12 on rear & 15x26.1 on front, Side pic shows different front tire sorry. Custom length Dana With springs move under frames.
Still one of my favorite Challengers! :cheers:
Thanks 303Mopar, Kind words means a lot coming from guys with beautiful cars.
My 73 with Goodyear Eagle GTII's. 235/60-15 on the front and 255/60-15 on the back.
I bought the 15" rims off a T/A, got a heck of a deal in them. I am getting ready to buy my tires soon. Out of the country now so it will be around July.
LT-III from ET Wheels. 17x8 with 4.75" BS Front. 18x9.5 with 5 1/8" BS Rear. Stock height. Had a little rubbing on the passenger side rear and rolled the lip enough to stop most of it. Could probably be done a bit more. I can update with tire info if interested.
Quote from: peterro on April 01, 2018, 09:49:40 AM
LT-III from ET Wheels. 17x8 with 4.75" BS Front. 18x9.5 with 5 1/8" BS Rear. Stock height. Had a little rubbing on the passenger side rear and rolled the lip enough to stop most of it. Could probably be done a bit more. I can update with tire info if interested.
Looks great! I also have those rims. I'm really happy with them also!
Quote from: Brads70 on April 01, 2018, 10:02:54 AM
Quote from: peterro on April 01, 2018, 09:49:40 AM
LT-III from ET Wheels. 17x8 with 4.75" BS Front. 18x9.5 with 5 1/8" BS Rear. Stock height. Had a little rubbing on the passenger side rear and rolled the lip enough to stop most of it. Could probably be done a bit more. I can update with tire info if interested.
Looks great! I also have those rims. I'm really happy with them also!
Ha, me too! Love those rims.
Edit: forgot the specs, front 18x9.5 5.5 BS with 275-35, rear 18x10 5.25 BS with 285-40.
Finally got my Polyglas on! Even if they are not the best performing option, nothing beats the look of those square shoulders on an E=Body!
F60-15 in front, G-60 in back, 15x7 all around.
Ben
16x10 Centerline X-series 2-pc forged lt-weight aluminum road race rims, 5" back-space, tires Hoosier A6 Autocross radials (tread wear 40) 275-45-16 ... front and rear, lowered suspension (stiff for competition handling). Front/rear fender lips slightly massaged for additional clearance... SCCA E/SP Solo II race class rules allow such mods... even full flares if desired. These tires do not rub.. if at all just barely and no concern.
15x8 Superlight brand mini-lite rims, ~4.3/8" back spacing, new BFG T/As 255-60-15 fronts, 275-60-15 rear .... this is my long distance highway cruising setup, and occasional lapping sessions. A very comfortable ride on the highway!
These are my 16x8 minilite rims 4-1/2" backspace, BFG Comp T/As 255-50-16 front/rear, used for road course lapping sessions.. and highway cruising.
Nice - what size tires and are you running a stock ebody rear?
I've always run the factory stock 8.75 rear differential (per racing rules required by SCCA and others, although, realistically, no one would probably ever figure out if a narrower b-body rear were in it.. but then, the narrower b-body rear doesn't help with a preferred wider track for cornering. Modifying the fender lips are allowed with the SCCA (and other clubs) rules.
I indicated the tire sizes with each rim setup group of pictures. I may, possibly, get a set of 18x10 or 18-11 rims and run the 200 tread wear tires.. as that's what many club's certain race classes require.. 200 minimum tread wear.. and tires are the main ingrediant!!! "Tarrss win races.." But, 18s rims and tires are costly to me now, so, they can wait. 17" rims are just about history because of very limited sizes (275-40-17 biggest/best choice); 18" rims offer much more tire choices and sizes and brands.... $$$$... can wait a while for me.
Pending my race club/classes future, I would prefer to run my 16x10 with the awesome Hoosier A or R compound 40 tread wear tires... they stick like glue and my car is already setup for that rim/tire combo.
Really serious racers run very soft tread wear tires... $$$$. Hoosiers are the best! (and yes officer, they are DOT legal... and no, the car is not for sale).
:ohyeah:
Quote from: peterro on April 01, 2018, 09:49:40 AM
LT-III from ET Wheels. 17x8 with 4.75" BS Front. 18x9.5 with 5 1/8" BS Rear. Stock height. Had a little rubbing on the passenger side rear and rolled the lip enough to stop most of it. Could probably be done a bit more. I can update with tire info if interested.
Sorry mopar mitch, meant to quote this post but thanks for the details! What tire sizes were used with the above ET wheel setup?
Will a 295/55-15 on 15x10 wheel with 5" BS fit under a 73 Cuda without moving/cutting/folding anything? Stock rear end width, original springs, KYB shocks.
I think the width (11.6") should be OK, but worry about the tire height, which is almost 28" tall. They should surely fill the wheel well up.
Found a used set at an attractive price but it's a 5hr round trip and they aren't cheap enough that I wouldn't be ticked if they don't fit.
I can't say for a fact. But I don't think so. I have a 9" wide with a 275/40 17. I had to trim the wheel lips to keep from rubbing and there is only a 1/2" clearance between the tire and leaf spring on the inside.
Hi all new guy here
anyway I have 1970 RT I am restoring going with the hemi 6 leafs to stand it up an inch or to. I want to put some 15x10 keystones on the rear and Nitto 295's if I can do it without having to cut or bend anything anyone running 15x10 without modding anything and if so what back spacing works best.?
thanks
Quote from: gzig5 on June 12, 2018, 08:58:28 AM
Will a 295/55-15 on 15x10 wheel with 5" BS fit under a 73 Cuda without moving/cutting/folding anything? Stock rear end width, original springs, KYB shocks.
I think the width (11.6") should be OK, but worry about the tire height, which is almost 28" tall. They should surely fill the wheel well up.
Found a used set at an attractive price but it's a 5hr round trip and they aren't cheap enough that I wouldn't be ticked if they don't fit.
Probably not. That is a lot of rim in combination with a lot of tire and the springs will get in the way.
This is a 295/65x15 mounted on a 8" rim with 4.5" backspace, against a stock spring in the stock location. There is only about a 1/4" from the sidewall to the rear segment of the spring. Tire height is no big deal. These are taller than the ones you rlooking at and they had diameter clearance despite being 30" tall.
Quote from: Cratos on July 03, 2018, 08:02:09 AM
Hi all new guy here
anyway I have 1970 RT I am restoring going with the hemi 6 leafs to stand it up an inch or to. I want to put some 15x10 keystones on the rear and Nitto 295's if I can do it without having to cut or bend anything anyone running 15x10 without modding anything and if so what back spacing works best.?
thanks
First, reproduction Hemi leafs will not necessarily make your car sit higher. The Hemi leaf design was made the way it was not for arch, but to control spring wrap. As designed, they are supposed to sit almost flat when the car is on all four wheels. If you want arch, you have order them from a manufacturing that can do +1 or +2 to the stock specification to create the lift.
Second, the 15x10s. This is a lot of wheel and two problems tend to occur with 10" widths; first spring interference with backspaces over 5", which is what is needed to get the tire in under the wheel opening; second is most off the shelf wheels like Keystone and Cragar and other offer 15x10s with backspace like 4 to 4.25, which shoves the tire way out into interference wheel opening. This is why air shocks were so popular in the '70s.
295s can fit. Heck 335s can fit in a Challenger. But you must have the spring out of the way and the correct backspace must be used. If you don't want to change anything, tried and true is a 275/60 on a 15x8. If you must have a 295, it will only fit a stock suspension using an 8" rim and run at 25-27 psi.
Quote from: HP2 on July 03, 2018, 06:55:02 PM
Quote from: gzig5 on June 12, 2018, 08:58:28 AM
Will a 295/55-15 on 15x10 wheel with 5" BS fit under a 73 Cuda without moving/cutting/folding anything? Stock rear end width, original springs, KYB shocks.
I think the width (11.6") should be OK, but worry about the tire height, which is almost 28" tall. They should surely fill the wheel well up.
Found a used set at an attractive price but it's a 5hr round trip and they aren't cheap enough that I wouldn't be ticked if they don't fit.
Probably not. That is a lot of rim in combination with a lot of tire and the springs will get in the way.
This is a 295/65x15 mounted on a 8" rim with 4.5" backspace, against a stock spring in the stock location. There is only about a 1/4" from the sidewall to the rear segment of the spring. Tire height is no big deal. These are taller than the ones you rlooking at and they had diameter clearance despite being 30" tall.
Are those air shocks? I love the look but know it's a no-no :Stirring:
No air shocks and stock 4 leaf 318 springs. The shocks are gas charged Mopar racing shocks from the 1990s. When you put a 30" tall tire under the rear and a 235/60 (26" tall) on the front, no spring lift is necessary to get a lot of rake. I don't think BFG makes that size tire any longer, but it had plenty of grip for near wheels up drag launches.
Quote from: HP2 on July 12, 2018, 07:26:05 PM
No air shocks and stock 4 leaf 318 springs. The springs are gas charged Mopar racing shocks from the 1990s. When you put a 30" tall tire under the rear and a 235/60 (26" tall) on the front, no spring lift is necessary to get a lot of rake. I don't think BFG makes that size tire any longer, but it had plenty of grip for near wheels up drag launches.
So with a 1/4" clearance did you have any rubbing issues? I've been thinking about running 295 on my 8" wheels. I have stock ebody rear and spring location.
Considering 17-inch aluminum rallyes from Coker or YearOne. Please post some pics if you're running 17's, and please also provide tire info/sizes. Thanks.
Quote from: 70pumpkin on August 13, 2018, 09:23:11 AM
Considering 17-inch aluminum rallyes from Coker or YearOne. Please post some pics if you're running 17's, and please also provide tire info/sizes. Thanks.
https://forum.e-bodies.org/wheels-tires-brakes-suspension-and-steering/12/e-body-tire-sizes-what-fits-whats-too-big-what-looks-good/4016/15
Quote from: dave73chally on July 15, 2018, 04:39:47 PM
Quote from: HP2 on July 12, 2018, 07:26:05 PM
No air shocks and stock 4 leaf 318 springs. The springs are gas charged Mopar racing shocks from the 1990s. When you put a 30" tall tire under the rear and a 235/60 (26" tall) on the front, no spring lift is necessary to get a lot of rake. I don't think BFG makes that size tire any longer, but it had plenty of grip for near wheels up drag launches.
So with a 1/4" clearance did you have any rubbing issues? I've been thinking about running 295 on my 8" wheels. I have stock ebody rear and spring location.
Not with the springs. Drag radials are a very stable carcass. They do not grow and distort under power like a bias ply.
so 285; on an 8 inch will be the biggest then without moving or cutting?
Quote from: Cratos on September 03, 2018, 09:58:51 AM
so 285; on an 8 inch will be the biggest then without moving or cutting?
275/60 on an 8" rim will fit fine at normal road pressures. 295/50 on a 9" rim will fit at normal road pressure. 295/50 on an 8" rim will fit, but normal road pressure will cause the center to wear faster than the shoulders. You have to run reduced pressure to get more tread on the ground, which puts more heat in the tire than normal pressure would.
First picture P225/70R14 ALL AROUND. Second picture P235/6015 FRONT P255/60R15 REAR
Quote from: peterro on April 01, 2018, 09:49:40 AM
LT-III from ET Wheels. 17x8 with 4.75" BS Front. 18x9.5 with 5 1/8" BS Rear. Stock height. Had a little rubbing on the passenger side rear and rolled the lip enough to stop most of it. Could probably be done a bit more. I can update with tire info if interested.
I bought my tires and had them put on today.I only put the fronts on tomorrow the rear. I went with 235/60/15 on the front with 255/60/15 on the rear. Bought a set of T/A,
My plans too, same sizes. Just waiting till spring. Need pics....
She finally got new tires. Will post better pics later
Got that blue and purple contrast going on..........Looks good.... :rubeyes:..LOL.......what width are the wheels.......?
Quote from: DAYLEY/CHALLENGER on March 05, 2019, 09:51:25 AM
Got that blue and purple contrast going on..........Looks good.... :rubeyes:..LOL.......what width are the wheels.......?
a
15x7 wheels
Ok. I bought 15 x 8........ tires soon............
Spread sheet thanks to Shawge
https://docs.google.com/spreadsheets/d/1fv1Gj5MqL7wPhw-z2qCs-qM3l_FDijDluqXdql1QsQ0/edit#gid=0
:bigthumb: Thanks Chryco.
Let me know if you see errors or if it can be improved. I haven't touched this since I bought my wheels but I think it would help others get a quick idea of whet would work. As always, YMMV. Best to measure for your application before you plunk down the $$$.
Quote from: shawge on July 03, 2019, 01:18:20 PM
:bigthumb: Thanks Chryco.
Let me know if you see errors or if it can be improved. I haven't touched this since I bought my wheels but I think it would help others get a quick idea of whet would work. As always, YMMV. Best to measure for your application before you plunk down the $$$.
This spreadsheet is killer. It would be awesome to include a hyperlink to a picture of the car. But I understand the time and effort needed to do so. Too bad a forum post couldn't be setup in that manner. Instead of posts being sorted by date posted, sorted in similar groups based on wheel/tire setup.
15x 10's and 295's and SS springs on the back a little big. :)
(https://uploads.tapatalk-cdn.com/20190901/94ca00e694cfe3a9debdeb42e6e408b7.jpg)
15x7 4" bs Chrysler police wheels with '70 rallye centers 235/60-15 all around.
The more rake you put in a mopar, the harder it is to get it to align. if you drop it consistently all around, you can still maintain some decent angles.
Moog offset upper control arm bushings for low cost, or tubular arms with revised geometry, are the two most effective ways of restoring alignment angles.
I went with Foose Knuckle wheels 18x8 with 245/45R18 in the front and 18x9.5 with 275/40R18 in the back. For the tires I went with Nitto NT555 G2's. Stock suspension and fit with no issues or rubbing. Actually could have went larger in the rear. I'm happy. 8)
Quote from: 918Muscle on December 06, 2019, 06:43:55 PM
I went with Foose Knuckle wheels 18x8 with 245/45R18 in the front and 18x9.5 with 275/40R18 in the back. For the tires I went with Nitto NT555 G2's. Stock suspension and fit with no issues or rubbing. Actually could have went larger in the rear. I'm happy. 8)
Nice! What backspacing did you end up using?
I believe the back spacing was 4.5 for the front and 5.25 for the rear.
Anyone running 17x9 with 5" bs, on both front/rear with stock suspension location? If so what size tires and how is clearance?
can you run 15x8 4.5 backspace up front on a 70 cuda? any problems?
Quote from: dave73 on December 15, 2019, 12:29:09 PM
Anyone running 17x9 with 5" bs, on both front/rear with stock suspension location? If so what size tires and how is clearance?
That won't work on the front. Front tires are really close to the fenders with the 17x8's. Mine with rub every now and then when I'm turning while going through a dip in the road. The rears are really close as well. Some people have luck and they do fine. I had to trim the wheel lips about a 1/2 inch so they didn't rub hitting dips in the road at higher speeds. This 17x8 front and 17x9 rear.
Here's my stock 1970 A66 on 15x7 Torq Thrust wheels with 225/60/15s front and 255/60/15s rear.
(https://live.staticflickr.com/65535/49420791956_ad73ba48da_h.jpg)
So the 1970 challenger convertible I picked up recently has 245/60/15s on all four corners. When I back out of the driveway or cut the wheel too much the front tires catch on the inside of the wheel lip moldings. I tightened up the torsion bars a little and it helped somewhat but I think I just need smaller tires up front because it's still happening once in a while. I typically ran 235/60/15s up front on my other E-bodys. I'm trying to decide whether to go with the 235/60/15s or the 225/60/15s. Looks like the 235/60/15s are only .5" smaller in diameter and .3" narrower than the 245/60/15s I'm not sure that's going to solve my problem. The 225/60/15s are 1" smaller in diameter and .7" narrower then the 245/60/15s. Which way should I go?
Quote from: Crocha617 on August 31, 2020, 08:03:26 AM
So the 1970 challenger convertible I picked up recently has 245/60/15s on all four corners. When I back out of the driveway or cut the wheel too much the front tires catch on the inside of the wheel lip moldings. I tightened up the torsion bars a little and it helped somewhat but I think I just need smaller tires up front because it's still happening once in a while. I typically ran 235/60/15s up front on my other E-bodys. I'm trying to decide whether to go with the 235/60/15s or the 225/60/15s. Looks like the 235/60/15s are only .5" smaller in diameter and .3" narrower than the 245/60/15s I'm not sure that's going to solve my problem. The 225/60/15s are 1" smaller in diameter and .7" narrower then the 245/60/15s. Which way should I go?
This is 255/60 rear and 235/60 front on original 15x7's. No rubbing issues on this car.
I put an A body rear under it, with 1 inch offset hangers now it all fits like I want it to :)
Quote from: Crocha617 on August 31, 2020, 08:03:26 AM
So the 1970 challenger convertible I picked up recently has 245/60/15s on all four corners. When I back out of the driveway or cut the wheel too much the front tires catch on the inside of the wheel lip moldings. I tightened up the torsion bars a little and it helped somewhat but I think I just need smaller tires up front because it's still happening once in a while. I typically ran 235/60/15s up front on my other E-bodys. I'm trying to decide whether to go with the 235/60/15s or the 225/60/15s. Looks like the 235/60/15s are only .5" smaller in diameter and .3" narrower than the 245/60/15s I'm not sure that's going to solve my problem. The 225/60/15s are 1" smaller in diameter and .7" narrower then the 245/60/15s. Which way should I go?
If the 235's fit on your other cars, then why wouldn't they fit on this car?
I don't know if you'd be up for changing out the rims too but, I run 245/60's up front on 15x8 rims. 4-1/2" backspace. I believe the backspacing is the key factor.
It's very close to rubbing on the inside but not the outside (Full disclosure - I had to go with stick on wheel weights on the inside and had to tuck in one brake line a bit as it was rubbing slightly at full lock, but these were easy fixes and I think the look is worth it)
(https://uploads.tapatalk-cdn.com/20201002/91c95a33cfaee56652bf36948cdc93da.jpg)
Sent from my iPhone using Tapatalk
As stated above, the rim's back-spacing is the key issue. Next is the height (diameter) of the tire, as well as the width of the tire.
Those Year One 17x9 rims have the correct back-spacing to fit 275-40-17 tires on both Front and Rear of our E-bodies. Those tires are actually pretty small in diameter... and not really that wide... as some people think of the overall size.
Do you remember which back spacing you used on your wheels?
Yep, there is not much room in the front. I have 17x7 with 225/50 and the passenger side rubs at a full right turn crank. They have 6mm offset and 3.75" backspacing, which I believe is part of the problem but that is only size for Cragars. I think a 5" backspace would be too much.
PS: I have 17x8 with 255/50 on the rear, 4.5 backspacing and the tire is dead center in the wheel well.
Quote from: Shane Kelley on January 10, 2020, 05:46:18 AM
Quote from: dave73 on December 15, 2019, 12:29:09 PM
Anyone running 17x9 with 5" bs, on both front/rear with stock suspension location? If so what size tires and how is clearance?
That won't work on the front. Front tires are really close to the fenders with the 17x8's. Mine with rub every now and then when I'm turning while going through a dip in the road. The rears are really close as well. Some people have luck and they do fine. I had to trim the wheel lips about a 1/2 inch so they didn't rub hitting dips in the road at higher speeds. This 17x8 front and 17x9 rear.
275/60-15 Mickey Thompson S/S rears & M/T SR's 215's on the front.
Genuine Centerlines
15x8-1/2" BS 3-3/16" Rear
15x5 Front
Could you tell me where you found the wheels?
What brand of tire are you using?
Hi, Is it possible to fit 15x10 rims with 3,38 backspace under -71 Cuda if I use dr diff 1" relocation kit and custom cut the 8 3/4 axle ?
Thanks.
With that BS and spring relocation kit, you have a lot of space between the wheel and spring leaf but will hit the quarter panel. 10" wheel with 5" BS will clear without the spring relocation.
Quote from: kape1 on April 04, 2021, 02:53:47 AM
Hi, Is it possible to fit 15x10 rims with 3,38 backspace under -71 Cuda if I use dr diff 1" relocation kit and custom cut the 8 3/4 axle ?
Thanks.
When you say "custom cut", do you mean narrowing the axles and housing?
Quote from: HP2 on April 04, 2021, 07:01:38 PM
Quote from: kape1 on April 04, 2021, 02:53:47 AM
Hi, Is it possible to fit 15x10 rims with 3,38 backspace under -71 Cuda if I use dr diff 1" relocation kit and custom cut the 8 3/4 axle ?
Thanks.
When you say "custom cut", do you mean narrowing the axles and housing?
Yes, narrowing the axles and housing, But I sent the question to Cass (dr diff) also and got this answer: "Unfortunately, that combination would require a 51" housing with 44" spring perches on center. The spring perches would end up on top of the housing ends." So It's not possible.
Found this; maybe it is helpful.
https://www.tyresizecalculator.com/
Ok....made the plunge. I want to post along as I do this. So to get started.......here goes.
Actually had the wheels for a while. 15 x8.
235/60/15 for the front and 255/60/15 for the rear.
Haven't put them on the car yet. Wanting to post some measurements first. In the next posting.
Charts are all good and all but I believe that pics tell a better story.
235/60....width measurement, sidewall to sidewall.
255/60.... same set up. And then the height diff....
And one with the center.
Well , pulled the old tires off and put on the BF Goodrich. Some size differences shown. Old size, P245/60/14.
Quote from: anlauto on November 12, 2017, 03:15:43 PM
Air shocks here too ! :drooling:
What are your tire/wheel specs?
Wheels are 15 x 8......... front tires are the 235/60/15 and the rear are 255/60/15. The car has the original rally wheels but, I like these better.......
Not my car, although owner noted wheel and tire sizes:
Year One Rallye Wheels: 8 x 17" with 4 1/2" BS Front and 9 x 17" with 5" BS Rear
Tires are 225/50R 17" Front and 255/50R 17" Rear.
Quote from: 303 Mopar on October 16, 2017, 03:35:17 PM
Hankook Ventus V12 245/45/18 and 275/40/18 with US Mag U111 Rambler textured gunmetal grey 18x8 and 18x9.5. The stock spring location gives abut 3/4" room, fits inside the rear quarters with no rolled lips. Fronts also fit perfect, no rolled lips, not rubbing on frame.
Do you know what offsets?
@303 Mopar (https://forum.e-bodies.org/mlist/303-mopar_7)
My original combo - American Racing 15x 8 1/2 with 255/60/15 BFG and 15 x 7 with 215/65/15, I also ran a 235/60/15 BFG Drag Radial on them (255 size wasn`t available in drag radials).
I wanted to change the wheels and found these used from a buddy off his Challenger, 235/60/15 and 255/70/15. I like the 60 in back better as the 70 looks a bit too tall.
I've go the same 255/70-15 on the back of mine and I don't mind it. Looks a lot better than the 14" 225/70 that was on before. I kind of feel like the height offsets the lack of width and really fills up the wheel well. I will probably be going to an 18" 295-305 wide but I don't want a tire sidewall that is too short, which limits selection.
Quote from: torredcuda on July 18, 2021, 01:39:20 PM
Quote from: 303 Mopar on October 16, 2017, 03:35:17 PM
Hankook Ventus V12 245/45/18 and 275/40/18 with US Mag U111 Rambler textured gunmetal grey 18x8 and 18x9.5. The stock spring location gives abut 3/4" room, fits inside the rear quarters with no rolled lips. Fronts also fit perfect, no rolled lips, not rubbing on frame.
Do you know what offsets? @303 Mopar (https://forum.e-bodies.org/mlist/303-mopar_7)
They are stock - http://us-mags.com/rambler-u111-w-6133.htm
i went with 255 on the front and 275 on rear.
Looks pretty sharp
I went with YearOne's 8x17 and 9x17 Mopar Rallye Wheels wrapped in Michelin Pilot Sport All Season 4 tires. 245/45ZR17 in the front and 275/40ZR17 rear. They fit perfect. No rubbing, no need to flair the wheel well, no need for a shackle relocation kit in the back. I am very happy with the look and they seem to ride great!!!
Nice 71. I have the same YO Rallye setup for about 8 years now. They are holding up well. But the aluminum is soft and the wheels are clear coated so a few scratches from driving. I am using off the shelf ceramic coating on them and it helps keep the shine and easy cleanup.
Quote from: 7212Mopar on December 24, 2021, 08:41:58 AM
Nice 71. I have the same YO Rallye setup for about 8 years now. They are holding up well. But the aluminum is soft and the wheels are clear coated so a few scratches from driving. I am using off the shelf ceramic coating on them and it helps keep the shine and easy cleanup.
Thank you very much for the tip. Much appreciated.
What many people overlook is that a 275-40-17 tire is actually a small diameter tire and not really that wide, either. They fit very nicely on the YO 17x9 rims... and those rims have the correct backspacing... they will easily clear our E-bodies in both Front and Rear.
By the way, I recently purchased a set of ET LT-III 18x11, 5.5" backspace, running Yokohama AO52 ADVAN 20 TW tires, 295-30-18 ... Front and Rear... stock location rear leafs. Car is set-up and used extensively for Autocross and road course events.... look me up on MOPARTY... many pics ... 2020 I used my old reliable Centerline X-series lightweight forged aluminum 16x10 rims (5" bs) with 255-50-16 BFG Comp-2 tires F/R... more commonly I'd use Hoosier A6 275-45-16 F/R. For this year, 2021, look at MOPARTY pics and you'll see the car with the new 18x11 F/R rims (vintage mini-lite style).
Ok.. before you ask, yes... I do have my lips flushed... done very nicely by a pro-body shop Mopar best-friend... they look stock and can I could still use the chrome trim lips if I wanted to (flushed as well). Also, as I noted, the car is setup for autocross racing... suspension very stiff.... yet still streetable (highway preferred).
My car is recently pictured in some Mopar Action magazines.
Rather than read all ten pages to see if this has been covered, Does anyone know what is the largest tire (rear specifically, but all the way around as well) I can fit with a 2" drop? I want the fattest tires I can fit on the car with the 2" drop for a 1971 Convertible Challenger. Thanks Gents! :cheers:
315/35x18 is possible all the way around. However, this will require a custom offset wheel that MUST be spot on to fit and the front alignment has to be set to compliment the articulation of the suspension to prevent interference.
https://www.youtube.com/watch?time_continue=486&v=3OJhK42hgh8&feature=emb_title
If you aren't willing to drop $4k in wheels, then most guys are comfortable with 295 rear 275 front.
Quote from: HP2 on March 12, 2022, 06:16:56 AM
315/35x18 is possible all the way around. However, this will require a custom offset wheel that MUST be spot on to fit and the front alignment has to be set to compliment the articulation of the suspension to prevent interference.
https://www.youtube.com/watch?time_continue=486&v=3OJhK42hgh8&feature=emb_title
If you aren't willing to drop $4k in wheels, then most guys are comfortable with 295 rear 275 front.
Thank you very much HP2. I do appreciate you taking the time to respond. :cheers:
Quote from: MOPAR MITCH on December 28, 2021, 12:12:51 PM
What many people overlook is that a 275-40-17 tire is actually a small diameter tire and not really that wide, either. They fit very nicely on the YO 17x9 rims... and those rims have the correct backspacing... they will easily clear our E-bodies in both Front and Rear.
By the way, I recently purchased a set of ET LT-III 18x11, 5.5" backspace, running Yokohama AO52 ADVAN 20 TW tires, 295-30-18 ... Front and Rear... stock location rear leafs. Car is set-up and used extensively for Autocross and road course events.... look me up on MOPARTY... many pics ... 2020 I used my old reliable Centerline X-series lightweight forged aluminum 16x10 rims (5" bs) with 255-50-16 BFG Comp-2 tires F/R... more commonly I'd use Hoosier A6 275-45-16 F/R. For this year, 2021, look at MOPARTY pics and you'll see the car with the new 18x11 F/R rims (vintage mini-lite style).
Ok.. before you ask, yes... I do have my lips flushed... done very nicely by a pro-body shop Mopar best-friend... they look stock and can I could still use the chrome trim lips if I wanted to (flushed as well). Also, as I noted, the car is setup for autocross racing... suspension very stiff.... yet still streetable (highway preferred).
My car is recently pictured in some Mopar Action magazines.
@MOPAR MITCH (https://forum.e-bodies.org/mlist/mopar-mitch_365)
Could you post or PM a link to the pics you mention? I found the Moparty site but can't find any pics. The ET LT-III has been on my short list for a long time. I have a '66 B-body rear with 1" spring relocation I can go with, so if you are fitting a 295 with stock spring spacing, I should have a good shot with a 305 and potentially 315 in the rear if I can get the offset right and/or tweak it with spacers. Although that 295-35-18 size has a pretty good selection to pick from. Does that 5.5" backspace pretty much center the 11" wide wheel in the available space?
The 5.5" back space on an 11" wide rim actually pushes the centerline out 1/2" towards the fender lips. With a 10" wide rim, and 5.5" backspacing, that will center it. Remember, you need to add ~1" (1/2" each side) to the overall rim width due to the thickness of the beads. In other words, a 9" rim is 10" overall width; a 10" is actually 11" overall; an 11" rim is actually 12" overall width. There is consideration of the front steering and tire section width that you have to keep in mind... I looked in detail at those matters... and decided to push it outwards just a little towards the fender lips. Yes... my lips are flushed and slightly pulled outwards, but done so in a stock-appearing way that even the chrome lips would still fit (if I wanted to, but they are not on the car)... and my car is slightly lowered front and rear... AND... my suspension is very stiff for autocrossing/road course intentions (yet still not bad at all to drive on the street... favoring smooth roads/highways..
The pics on my car from MOPARTY are on their web-site and various coverage articles from the event... just have to search and click... then folders of pictures open up... lots of pictures!!! Look for the light-blue Omni Turbo autocross car.. click on it... lots of multiple pics from the event and on my car.
try these couple links... and click on the blue Omni... and other pics.. they progressively open folders of pictures!
https://www.holley.com/blog/post/holley_moparty_2021_all_of_the_coverage_from_beech_bend/
https://www.holley.com/blog/post/holley_moparty_2021_grand_champion/
On both of these links, scroll down and hit SEE ALL PICS.
My rims are Team III ET vintage mini-lites... 18x11 with 5.5" backspacing... tires are Yokohama ADVAN AO52 size 295-30-18 front and rear (200 soft sticky tread wear... amongst the best for 200 Tread Wear autocross competition). I'm running a stock E-body 8.75" rear end (unlike others that have switched to the ~68-70? narrower B-body rear end).
Recently tried out this combo, putting the 14" whitewalls and hubcaps in storage. 245/60 front and 255/60 rear. All on 15x7 magnum 500 style chrome wheels. I wanted to use a wheel and rwl tire that was different from the traditional Rallyes with bf Goodrich's
Can somebody say for sure if 245/60/15 BF Goodrich tires will fit on the front of a 70 Cuda using the original 15" rally's she was born with?
I have 245/60/15 Riken tires on now but they are old, like 20 plus years old and they are only 25.5 inches tall.
Back in the 70's I took the E60/15's off and tried G60/15's but they rubbed the front lower corners of the fenders
E60/15's are 26.1 tall and the 245/60/15 bf's are 26.6 tall
I don't want to buy and try if I can avoid it.
Thanks Ken
I had the 245's on ,y 70 Challenger and they fit fine no rubbing at all.
Thanks for the reply, as there are limited amounts of tires in the 15" size and BF Goodrich are available in my area I guess all I can do is try them. 255/60/15 on the rear for sure
Quote from: Cratos on August 15, 2019, 06:28:14 AM
15x 10's and 295's and SS springs on the back a little big. :)
Got anymore pics?
Quote from: MOPAR MITCH on October 05, 2020, 12:08:00 PM
As stated above, the rim's back-spacing is the key issue. Next is the height (diameter) of the tire, as well as the width of the tire.
Those Year One 17x9 rims have the correct back-spacing to fit 275-40-17 tires on both Front and Rear of our E-bodies. Those tires are actually pretty small in diameter... and not really that wide... as some people think of the overall size.
Will a 3.5" backspacing on the front stick out closer to the fender lip than a 4.5"?
A 5" backspacing on the rear will sit further in towards the drum, correct?
Who has a 295/50r15 in the back?
What size rim should I do? 8" wide or 10"?
Will I need to relocate the springs or not?
Quote from: anlauto on November 12, 2017, 03:15:43 PM
Air shocks here too ! :drooling:
What tire/wheel combo?
WACO -- you do NOT want a 3.5" backspace on any rim.... unless you want that deep dish look... AND fender interference problems with any size tire.... regardless front or rear.
15"x10" 295's 6"BS with 1/4" spacers Dr Diff spring relocation kit on std e width axle
Quote from: Waco on July 21, 2022, 03:06:04 PM
Who has a 295/50r15 in the back?
What size rim should I do? 8" wide or 10"?
Will I need to relocate the springs or not?
Neither, 9.5 is best. However, either of those will work. 8" requires you run lower pressure, 10" makes the tire look a bit stretched, IMO.
You will need to move springs for a 10" rim IF you want the tire to sit inside the fender lip. if your raising you car higher, then it may not matter. If your using a 3.5" backspace rim of either size, you absolutely will have to raise the car.
295 on 10 inch rim 67 b body rear dr.diff relocating kit
65-67 B-body rear end with dr diff spring relocation kit.
I use "10 rims with "5 backspacing with MT 28-12/15 tires.
I've progressed over the years... using the car primarily for pylon autocross and hi-speed road course autocross (HSAX/HPDE).
Latest setup is Team III ET rims (vintage mini-lites), size 18x11 front and rear, backspacing 5.5". Fender lips have long been flushed and slightly pulled; suspension is lowered and stiffly setup. Current tires are Yokohama AO52 series 295-30-18, 200 tread wear.
Factory front spindles (Cordoba 11.75 rotors); factory 8.75" e-body differential.
Would I be able to run 15 x 10 deep dish auto drags with off set spring hangers and shorten my e body diff.
Or even find a b body diff
Quote from: 70rtse on January 10, 2023, 04:36:03 AM
Would I be able to run 15 x 10 deep dish auto drags with off set spring hangers and shorten my e body diff.
Or even find a b body diff
Depends on what you mean by "deep dish". The typical deep dish dimension for a 15x10 is 3.5" backspace, which means no, you can't run these without lifting the body or narrowing the rear AND moving in the springs. The stock rear housing is about 2" too wide per side for those wheels to fit within the stock wells without significant modifications....or a lift kit.
Did you have any rubbing issues in the back?
18x11 rear with 6.25bs with 295 40 18
18x9.5" front 5.25bs with 275 35 18
Fallen 660 tires
ET Mags LT-3
I have a detailed video of the wheels and tires and installation if interested
315/60/15 Drag Radials on 15"x12" wheels. Mini tubbed and springs relocated to frame rails with Caltracs and split mono leafs.
Quote from: HP2 on September 03, 2022, 07:38:04 AM
Quote from: Waco on July 21, 2022, 03:06:04 PM
Who has a 295/50r15 in the back?
What size rim should I do? 8" wide or 10"?
Will I need to relocate the springs or not?
Neither, 9.5 is best. However, either of those will work. 8" requires you run lower pressure, 10" makes the tire look a bit stretched, IMO.
You will need to move springs for a 10" rim IF you want the tire to sit inside the fender lip. if your raising you car higher, then it may not matter. If your using a 3.5" backspace rim of either size, you absolutely will have to raise the car.
I like the look of your rear.... Did you mini tub or no? I really don't want to if I don't have to. A lot of work IMO. I will be happy running a 10.5 wide tire.
Quote from: Novice on May 11, 2023, 12:59:24 PM
Quote from: HP2 on September 03, 2022, 07:38:04 AM
Quote from: Waco on July 21, 2022, 03:06:04 PM
Who has a 295/50r15 in the back?
What size rim should I do? 8" wide or 10"?
Will I need to relocate the springs or not?
Neither, 9.5 is best. However, either of those will work. 8" requires you run lower pressure, 10" makes the tire look a bit stretched, IMO.
You will need to move springs for a 10" rim IF you want the tire to sit inside the fender lip. if your raising you car higher, then it may not matter. If your using a 3.5" backspace rim of either size, you absolutely will have to raise the car.
I like the look of your rear.... Did you mini tub or no? I really don't want to if I don't have to. A lot of work IMO. I will be happy running a 10.5 wide tire.
If you are asking me, no, I did not tub the rear wells. I moved springs in 1" per side, used a B body housing, 15x10 w/5" backspace, and a 305 tire.
As the restoration of my girl was about to wrap up, I was on this topic daily (multiple times) for about 2 weeks stressing over what size wheels and tires to buy. I figured I owe to the next guy in my shoes to post another one and show what I selected. I am pleased with how these wheels and tire combos finished out the car. The stance is just right to not be too aggressive for a base model with 318, 4bbl, auto.
Was: 14x6 rallye wheels with 215/70s
Now: front - 235/60s on 15x7 American Racing VN515
Rear - 255/60s on 15x8
I currently have Mopar rallies on the front of my '73 'Cuda with P215/65/15 T/As. I want to run Keystone Klassic wheels, however, you seem to have no choice in backspacing if ordering from jegs or summit or any other normal places. I want 15x6" on the front with the same tire size, but these wheels only come with a 3 inch backspace and a -3 mm offset. These are very expensive wheels and I don't want to spend the money and then have them not look good. I'm just not sure that's a good backspace for look I want... But again you have no choice. If you want this wheel, you have to buy what they offer. Does anyone have any thoughts on how this would look? I prefer to have everything tucked up inside the wheel well (as it currently is) instead of out, flush with it...
Front - 15x7, 3.75" BS
Rear - 15x8, 4.5" BS
Hi,is it possible to fit 10x18 bs 6"/et12 front and rear on a 70 Challenger?
E-body 8 3/4 axle, caltracks and split monos, but will change to hotchkiss leafs and dr.diff offset chackle/hanger kit.
Rear drums and std front discs,
Plan to upgrade brakes and that will increase the track a bit.
Rear i'm quite confident 10x18 6"backspace will fit with offset springs (and small spacer or discbrakes) but 6"bs front im not shure about.
Quote from: T/R on February 16, 2024, 02:21:36 AMHi,is it possible to fit 10x18 bs 6"/et12 front and rear on a 70 Challenger?
E-body 8 3/4 axle, caltracks and split monos, but will change to hotchkiss leafs and dr.diff offset chackle/hanger kit.
Rear drums and std front discs,
Plan to upgrade brakes and that will increase the track a bit.
Rear i'm quite confident 10x18 6"backspace will fit with offset springs (and small spacer or discbrakes) but 6"bs front im not shure about.
I believe it will in the rear after offsetting the springs but no it won't in the front. Steering arm/tie rod will hit.
At 18" diameter, it will still hit the tie rod end?
At 10" wide, I think the bigger issue would be fender lip clearance.
Quote from: HP2 on February 17, 2024, 08:54:11 AMAt 18" diameter, it will still hit the tie rod end?
At 10" wide, I think the bigger issue would be fender lip clearance.
I believe so, especially with the 6" backspace he asked about. Mine just clears ( 18x11 w 5" BS) but I have also dropped the tierod and other 1" or more to help with bumpsteer. Remember although it sounds like a 9" radius (18 divided by 2) the hoop of the rims goes down around another 1" for the bead and strength. Also with 6" backspace I would think the tire would rub on the frame rail at turn lock.
Edit : yes, agreed, fender lip would also hit.
Thanks guys, so 10" front wheels are only possible if i pull out my fenders and less than 6" BS.
The rims i want only come in 8"or 10" x18 (AR Groove) and i rather have 275 than 245 front tyres.
Well well maybe i'll settle with 8"x18" wide front rims then. :thinking:
Now she uses shoes in 245/60-15 295/50-15 on 8x15 police wheels.
And i have a set 14" Rally wheels with Dunlop GT Qualifyer in L60-14/ F60-14.
Performance tyres in 15" are rear so i need a bigger wheelset for those winding roads.
I reviewed the chart posted earlier in this thread and noted a 15x10 wheel with 6" BS and 1/4" spacers using a standard width E-Body rear end. Would I be correct in thinking a 6.5" backspace wheel could be used 'as is' with the B-Body D60 or, if not, what is the appropriate width spacer? Thanks in advance.
Quote from: PsyOps on March 03, 2024, 02:53:23 AMI reviewed the chart posted earlier in this thread and noted a 15x10 wheel with 6" BS and 1/4" spacers using a standard width E-Body rear end. Would I be correct in thinking a 6.5" backspace wheel could be used 'as is' with the B-Body D60 or, if not, what is the appropriate width spacer? Thanks in advance.
With the B-Body width rear end I believe it's a 5" backspace on a 10" rim
Quote from: PsyOps on March 03, 2024, 02:53:23 AMI reviewed the chart posted earlier in this thread and noted a 15x10 wheel with 6" BS and 1/4" spacers using a standard width E-Body rear end. Would I be correct in thinking a 6.5" backspace wheel could be used 'as is' with the B-Body D60 or, if not, what is the appropriate width spacer? Thanks in advance.
It depends. This thread has been going on so long I don't recall what chart you are referring to and honestly, I'm too lazy to go digging for it. So here is my take on it.
First, a 10" wheel will not fit within the fender lip with the leaf springs in the original location. If you are lifting the body so high the wheel/tire can stick out past the body line, then it doesn't matter. If you want to tire to actually tuck up behind the wheel opening lip, then the 10" won't fit unless you move the springs in at least an inch.
This is because the E body springs are splayed wider at the rear mounting point than they are at the front and the wider wheel you use, the greater the chance of spring interference because the springs are the first structural component you hit before you have wheel well interference. 10" wheel with any backspace great than 4.5" and a 305-325mm tire will hit the leaf springs in the rear section. Conversely, any wheel with only 4.5" backspace is going to put the tire into the wheel opening lip.
Once you do move the spring in, then you need to adjust the backspace on the wheel based on the rear axle housing you are using. If using the stock E body housing, then yes, 6" backspace would work. If using a 71-74 B body housing, then 6.5" of backspace is needed. If using a 68-70 B body housing, then 5.5" backspace. If using a 65-67 B body housing, then 5" backspace.
So, yes, it is possible to use a B body housing and a 6.5" backspace wheel without a spacer and still have it all fit, but it depends on which B body housing you use and what you do with the leaf springs.
Quote from: HP2 on March 03, 2024, 11:03:46 AMThis thread has been going on so long I don't recall what chart you are referring to and honestly, I'm too lazy to go digging for it...
The chart is the spreadsheet in Post #95 (https://docs.google.com/spreadsheets/d/1fv1Gj5MqL7wPhw-z2qCs-qM3l_FDijDluqXdql1QsQ0/edit#gid=0).
That being said, I was unaware of the triangulation effect of the splayed rear frame rails - good to know. Thanks HP2. Guess it's time to break out the tape measure.
This brings up another question; If the front spring mounts are moved in to the frame rails & the springs made parallel, are different shocks used or is that change of shock alignment negligible?
Ahhh, okay. I vaguely remember that. It is a collection of member's combos. Not sure how long its been since it was updated.
So, Rikkitik is a member on here. He is actually using the stock E body axle housing on his combo, not a B body unit. He has 15x10 with 6.5" of backspace and a .25" spacer to pull it that quarter inch off the springs side, so essentially a 6.25 back space net. Here is a reply with his combo: https://forum.e-bodies.org/wheels-tires-brakes-suspension-and-steering/12/mini-tub-and-spring-relocation-kit/28170/msg314026#msg314026
By way of contrast, I have springs moved in 1 inch, a 67 B body housing, 15x10 with 5" backspace and a 305 tire. I have approximately 1" from tire to the spring and 1" from the tire to the fender lip, and no spacers used anywhere.
Up front, there is absolutely no way any 15" rim with more than 4.75" of back space will fit. This is because the lip of the wheel hits the upper ball joint once you get to the 5" backspace. You have to move into 16, 17, or 18 inch wheels to get around that interference issue.
I am running 15x8 with 4.5" backspace and a 255 tire. At normal ride height, I had no interference issues. Since dropping it down 2.5-3", I have rolled the opening lip to avoid any issues at extreme lock and roll, although I doubt I'll have any roll issue causing interference with my bar combo.
Regarding the shocks, moving the springs in 3" to put them in the frame rails does not require any changes to shocks. It does make them more vertical, which slightly reduces their stroke and slightly improves their efficiency, but it also moves them further away from the tire which decreases their effectiveness.
Also, if you move the springs in 3" the next interference point will be the wheel wheel. So depending on how large you want to go, mini tubs may be required. This will gain an extra 1.5" or so before the frame rail becomes the next interference point. A low profile tire around 335 wide can fit in the stock, unmodified well, XV proved this. A taller, drag style tire will rub higher up in the well because of the its slight taper against the body.
Thanks for link and the additional info HP2.
OK, I'm back with another question. HP2, in the link you referred me to, you posted: I've seen several people fit 335 tires in the stock wells, so they can swallow a fairly wide tire. However, the backspace on the rims has to be spot on and the overall diameter could be a factor as well. If you wanted to go with a wide and tall sidewall tire like a drag tire, then you may have issues at the top of the well. I've read somewhere, and can't find it now, that someone is running a Nitto 325-50/15 (27.83" dia, 13.23" sect) tire on 15x10s with a B-body (year not specified) rear end, Dr Diff 1" spring kit and ESPO+1 springs. I would like to duplicate that set up without moving the springs into the frame rails or backhalfing the car. Mini-tubs are fine. What do you think?
Quote from: PsyOps on March 31, 2024, 02:39:01 AMOK, I'm back with another question. HP2, in the link you referred me to, you posted: I've seen several people fit 335 tires in the stock wells, so they can swallow a fairly wide tire. However, the backspace on the rims has to be spot on and the overall diameter could be a factor as well. If you wanted to go with a wide and tall sidewall tire like a drag tire, then you may have issues at the top of the well. I've read somewhere, and can't find it now, that someone is running a Nitto 325-50/15 (27.83" dia, 13.23" sect) tire on 15x10s with a B-body (year not specified) rear end, Dr Diff 1" spring kit and ESPO+1 springs. I would like to duplicate that set up without moving the springs into the frame rails or backhalfing the car. Mini-tubs are fine. What do you think?
I should be able to answer some of your questions too. I'm putting a 305/35r20 tire on an 11" rim in my stock wheel wells. It will be tight from my preliminary measurements. Mods are a 1" Dr diff relocation kit, a Dana 60 built to early B-body width, trimmed inner fender lip when doing the bodywork. With the way I have everything set up, I ordered rims with a 5.75 inch backspace. It will be close to the leaf springs, but I do not foresee any tire deflection at all.
I should be able to answer some of your questions too. I'm putting a 305/35r20 tire on an 11" rim in my stock wheel wells. It will be tight from my preliminary measurements. Mods are a 1" Dr diff relocation kit, a Dana 60 built to early B-body width, trimmed inner fender lip when doing the bodywork. With the way I have everything set up, I ordered rims with a 5.75 inch backspace. It will be close to the leaf springs, but I do not foresee any tire deflection at all.
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Thanks for the response 'Donkey. What is the cross section width of your 305 tire (I could look it up but I'm too lazy tonight)?