E-Bodies.org Cuda Challenger Forum

Technical Shop => Electrical & Audio => Topic started by: screamindriver on July 04, 2018, 06:55:41 PM

Title: N88 E body Speed/Cruise Control System
Post by: screamindriver on July 04, 2018, 06:55:41 PM
 Rather than clutter up the A01 thread I wanted to start this new one for the ebody speed control...

   I'm in the process of gathering/restoring parts to make a functional system and I'm running into the same problems as most are going to encounter...So hopefully we can get some good info on just what the system includes for correctness...Show others what's needed.. And more importantly what's available today that could be used...
    Alan,Randy, and Tav I know you've all contributed  info over the years to some degree but there's not one good source for someone to see exactly what's needed to make the system functional again so hopefully any members with knowledge/parts can make this one a good reference thread..
  I've saved pics from all sources so if one happens to be yours thanks in advance...
   I'll start with a quick wiring overview...
Title: Re: E body Speed Control System
Post by: screamindriver on July 04, 2018, 07:22:19 PM
 Here's a close-up of what I call the sub-harness for lack of a better ID...As you can see the engine bay side of the harness is wrapped with cloth tape and has the harness tag where the engine bay/servo harness connects...Does anyone know the correct tag part number for this section of harness ???
    I've also been finding some original plastic harness connectors in grey or black it must be a supplier variance...
  Unfortunately the harness isn't being repoped...I'm not sure on just what percentage of E bodys came with the speed control but I would have thought M&H would have found it profitable to offer this harness...
Tav, I know you've stated you sent your harness to M&H but I called last week and they have no pattern or blueprint to make it happen...
Alan, I can send M&H an original set to see if we can get a run of them...I'll need to call again and get more details..
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on July 04, 2018, 08:44:19 PM
The correct switch/turn signal lever is tough to find, it's longer than any other Mopar from the time frame... But there is an acceptable work around... I've built four of them through the years by using two C body levers... I slide the switch off both the levers I cut the wires just above the connector, new connectors are available...... Then I cut the two short levers leaving the sections I'm gonna use long enough to make the long E body lever....  It should be 5.25 from the bend at the base to the shoulder where the switch butts against... Anyway, once you have the two pieces I lay them in a section of angle iron to hold them in alignment & run a series of tack welds, weld & rotate, weld & rotate.... Then grind & smooth it till your satisfied...   The nice thing is E body levers is they were never chrome plated, they were painted silver argent...  Feed the wires through the lever & slide the switch back on... Crimp new connectors on the wires & your now the proud owner of an E body cruise control lever... 
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on July 04, 2018, 09:04:06 PM
The correct 70-71 E body cruise control servo bracket is another hard to find item....  Most non original installs use completely wrong brackets that can be spotted mile off.. The bracket on the Orange Cuda is correct... The bracket on the green Challenger is mine.... I've held it side by side with a correct part, the contour & angles are the same as the E body bracket, the differences are the three bolt hole pattern is inverted & the stiffener bead is also inverted.....
The bracket I use isn't easy to find but they probably built twenty plus times as many as the E body bracket....    It comes off a 71-72 B body....
Title: Re: E body Speed Control System
Post by: anlauto on July 05, 2018, 04:34:34 AM
I need the bracket that mounts to the master cylinder., and I could use a new cable too... :help:
Title: Re: E body Speed Control System
Post by: fc7cuda on July 05, 2018, 11:50:13 AM
@anlauto (https://forum.e-bodies.org/mlist/anlauto_19) Do you know the cable length you need, is it speedo to servo cable?  I've got some a box of parts and I'm following this thread to see what I actually have and how to disperse it...
Title: Re: E body Speed Control System
Post by: YYZ on July 05, 2018, 01:21:41 PM
 :australia:
Quote from: anlauto on July 05, 2018, 04:34:34 AM
I need the bracket that mounts to the master cylinder., and I could use a new cable too... :help:

I have a short cable from the N95 emissions control — if you know the length I can compare them.
Title: Re: E body Speed Control System
Post by: screamindriver on July 05, 2018, 03:28:48 PM
 Randy, the servo mounting bracket you've got is so close to the correct part it took me a while to see any differences..Nice alternative if you don't have the original...Here's a question...How do you get the lever apart ???? If I'm looking at mine correctly it appears there's a snap ring under the barrel that needs to be removed??? Not an easy task if that's the case...

   I've got the original e-body speedo cables,servo and bracket, lever, and all the wiring...I'll post some measurements and specs so we can all see just what is needed...I pulled the box from storage and the wrapping news paper is from 1986 !!! :o
Title: Re: E body Speed Control System
Post by: screamindriver on July 05, 2018, 03:37:54 PM
Alan, I thought the master cylinder bracket is being reproduced ???  :thinking:...
Title: Re: E body Speed Control System
Post by: screamindriver on July 05, 2018, 04:02:46 PM
Well, I was looking at available NOS parts from various sources then in the parts book and as usual I'm more confused now than when I started.. :haha:.. Most of the speed control part numbers have been superseded many times over... The only real way to get it right would be to measure some originals and go from there... I'll take it one step at a time...

   Back to the wiring harnesses...Here's what I've got...To be honest they are in great shape...But that tends to happen when they've been in a box for 30 years... I need to contact M$H and find out exactly what they do or don't have for components...I did have more than one 70 harness in the box and some other year harnesses as well that have the correct connectors but the wiring length varies...
Title: Re: E body Speed Control System
Post by: screamindriver on July 05, 2018, 06:35:04 PM
Here's some close-ups of some of the connectors of the original harness...The stalk connector has a white sealer over the wiring to hold it in place...Also the white tracer of the black wire has a unique pattern throughout the whole run...
      One nice thing is the servo connectors are the same for many years I'll throw in a pic showing a few different years...The 75 cordoba harness has a rubber coating and looks like an extension cord ...
   Lastly, the 70 stalk connector is black and later years are white with a slight difference but it looks as though they'd be interchangeable... More importantly as I've stated previously I'm finding black and white connectors even for the e body pieces so I would say either would be correct in any combination..
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on July 05, 2018, 07:50:28 PM
Waiting for someone to post photos of the various styles of switch bodies used from 69-74...

As far as taking it apart... I know I saw photos of it done so someone has had it apart.... All I did was slide the switch off the lever.... 
By holding the lever in a vise if you grasp the switch assembly down close to the lever & pull the switch will come off.... Don't pull up near the rotating portion or you'll break it but down by the lever is pretty solid....
Title: Re: E body Speed Control System
Post by: anlauto on July 06, 2018, 03:31:58 AM
Quote from: screamindriver on July 05, 2018, 03:37:54 PM
Alan, I thought the master cylinder bracket is being reproduced ???  :thinking:...

That's great news, do you know who might carry them ?
Title: Re: E body Speed Control System
Post by: fc7cuda on July 06, 2018, 06:29:20 PM
I have some NOS ones, how about $20 at Carlisle?
Title: Re: E body Speed Control System
Post by: anlauto on July 06, 2018, 06:34:08 PM
Are you vending at Carlisle ? If so whereabouts ?
Title: Re: E body Speed Control System
Post by: screamindriver on July 07, 2018, 03:22:45 PM
I had time to pull and measure some original components..First up is the two cables...
Title: Re: E body Speed Control System
Post by: screamindriver on July 07, 2018, 03:27:31 PM
Next up is the stalk/lever....
Title: Re: E body Speed Control System
Post by: screamindriver on July 07, 2018, 03:36:44 PM
I'll post a pic of the servo bracket and brake switch I have on file..Next pic is what I have to work with in it's "pulled from the box" condition...This one obviously has some black paint added at some point...But the interesting thing is the bottom didn't get the recoat and the original black paint on the bracket is quite shiny..More shiny than even the pic would suggest...
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on July 07, 2018, 05:27:01 PM
Quote from: screamindriver on July 07, 2018, 03:27:31 PM
Next up is the stalk/lever....

I see yours has a white connector, my two real ones did to...
Title: Re: E body Speed Control System
Post by: screamindriver on July 07, 2018, 08:09:35 PM
Yes, and the discoloration on the connector isn't from being overheated it's actually the black dye from the harness connector...

  Alan, I'm not sure which cable you need but knowing my original is 36" I found this speedo cable...I snagged one and I'll post some pics comparing the original to this NOS piece when it arrives...It looks like all it needs to be 100% is a firewall grommet change...  https://www.ebay.com/itm/NOS-1969-73-CHRYSLER-DODGE-PLYMOUTH-UPPER-SPEEDOMETER-CRUISE-CONTROL-CABLE/252512657414?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D52971%26meid%3Df61345cd3e16441f83bf65292b6bd611%26pid%3D100675%26rk%3D1%26rkt%3D15%26sd%3D252512657414%26itm%3D252512657414&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5842132a-825b-11e8-a2e9-74dbd1801e17%7Cparentrq%3A77d729451640aa1245559663ffed129a%7Ciid%3A1 (https://www.ebay.com/itm/NOS-1969-73-CHRYSLER-DODGE-PLYMOUTH-UPPER-SPEEDOMETER-CRUISE-CONTROL-CABLE/252512657414?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D52971%26meid%3Df61345cd3e16441f83bf65292b6bd611%26pid%3D100675%26rk%3D1%26rkt%3D15%26sd%3D252512657414%26itm%3D252512657414&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5842132a-825b-11e8-a2e9-74dbd1801e17%7Cparentrq%3A77d729451640aa1245559663ffed129a%7Ciid%3A1)      UPDATE : One of the superseded part numbers for the 36" upper cable is 3592370... I pulled quite a few of these up using that number here's an example and it's got the correct grommet..https://www.ebay.com/itm/NOS-Mopar-1970-73-Chrysler-Imperial-w-cruise-control-upper-speedometer-cable/232767041002?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D52861%26meid%3Dadb860440ab64acb9ca41848a256e755%26pid%3D100005%26rk%3D1%26rkt%3D8%26sd%3D252512657414%26itm%3D232767041002&_trksid=p2047675.c100005.m1851 (https://www.ebay.com/itm/NOS-Mopar-1970-73-Chrysler-Imperial-w-cruise-control-upper-speedometer-cable/232767041002?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D52861%26meid%3Dadb860440ab64acb9ca41848a256e755%26pid%3D100005%26rk%3D1%26rkt%3D8%26sd%3D252512657414%26itm%3D232767041002&_trksid=p2047675.c100005.m1851)

  Here's something interesting I pulled from an NOS cable description about 69-73 "upper" speedo cables :A-bodies used a cable 25" in length; all other cars including full size used one 36" overall in length. The ends are the same all cars.
Title: Re: E body Speed Control System
Post by: anlauto on July 08, 2018, 10:14:51 AM
Here's a picture of the harness Tommy White, aka The Parts Hound, made for me.  :banana: Connectors may not be 100% correct, but he used all that was available. :worship:
Title: Re: E body Speed Control System
Post by: screamindriver on July 08, 2018, 01:35:07 PM
Wow, very nice !!! :twothumbsup: Will he make additional harnesses ??? And is there any contact info for him ??? Looks like he has a quicker turn-around time than M&H has...And knowing he has the ability to make these is a huge plus in the future...
Title: Re: E body Speed Control System
Post by: fc7cuda on July 08, 2018, 05:14:36 PM
I'm really enjoying this thread, and not to misdirect it but do you know if the Stewart Warner lettering is correct on these?  I have several NOS that are 36".  I wish I knew you were looking for one, I'd be happy to part with these.

Thanks
Tom
Title: Re: E body Speed Control System
Post by: fc7cuda on July 08, 2018, 05:18:05 PM
Close up
Title: Re: E body Speed Control System
Post by: screamindriver on July 08, 2018, 07:37:13 PM
Tom, I'll check my original speedo cable to see if there's any evidence of the script in the area of your pics...To be honest the servo end looks good enough to pass the engine bay inspection...Those cables will be perfect for 99% of anyone needing one...

  Looking at your pic leads to the next set of questions for anyone that can shed some light...The other servo{throttle} cables you have there {cable 14-2-34 in the parts book breakdown} are engine specific for the needed throttle linkage spacing it's calling for 318,383 2bbl and 440, and a 383 4bbl to all have their own part numbers...I know my original is for the 318...So I can provide the measurement/specs for this particular cable...It sure would be nice to know what the differences are between the cables for anyone retrofitting their project...
Title: Re: E body Speed Control System
Post by: screamindriver on July 09, 2018, 07:20:22 PM
    Tom, I'm not seeing any evidence of the script or any id markings for that matter on this set of cables...

   I did have time to measure the servo throttle cable here's the specs for the small block 70 cable hopefully this will help someone out in the future..The 8 1/4 "  carb end measurement is fully extended:
Title: Re: E body Speed Control System
Post by: screamindriver on July 09, 2018, 07:28:40 PM
Does anyone have a better pic of the carburetor lost motion link ??? I have a pic of the part itself and an old pic of one installed on a 6bbl but it's not the best to see exactly what's going on with these parts...
Title: Re: E body Speed Control System
Post by: EV2RTSE on July 11, 2018, 07:55:08 PM
Here's one from a 440-4 car, and also the cable clamp which is different from small block to big block.
Title: Re: E body Speed Control System
Post by: screamindriver on July 11, 2018, 08:52:17 PM
Nice pics.... :bigthumb:...Interesting arrangement on the 440-4 ...Seeing that makes me wonder if the retrofit on the 6bbl I posted actually worked as it should...
   I forgot about the cable clamp being specific to BB and SBs nice addition to the thread...
Title: Re: E body Speed Control System
Post by: EV2RTSE on July 12, 2018, 06:43:20 AM
You know what, after looking further, I think the 440-4 car has the link on backwards.
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on July 12, 2018, 07:02:18 AM
Backwards & attached to the wrong place.... It's attached to the stud the throttle cable attaches to... It should be on the front edge of the throttle lever like in the picture of the sixpack....
Title: Re: E body Speed Control System
Post by: screamindriver on July 20, 2018, 07:53:24 PM
I've made some significant progress with research,details, and the Carlisle parts hunt for the speed control system..
  First up a big thanks to fc7cuda for bringing all the NOS pieces of the puzzle for my system completion ..Thanks a bunch Tom and it was a pleasure meeting you in person..You definitely made the hunt much easier...

   I've spoken with Tommy White {he now offers a 2 pc speed control harness on Ebay} and Bill Evans {Evans wiring} and the general consensus is the early 70 two piece harness{which I've pictured in detail} was at some point superseded to a one piece harness..Considering the rarity of  these harnesses Bill Evans stated he's never held one, but would consider offering them if he could make a pattern from an original...I will be using the original harnesses that I've shown for my project they're just too nice not to use them but I want to make sure others will have the ability to buy them from someone if needed..

   Speaking of the early harnesses I've made what I consider to be a great find for detailing...And for me it's all in the details...
  Thinking initially the tags were too far degraded to serve any useful info I figured I'd give it give it a try and carefully unwrap the original harness tags not knowing what exactly I'd find...
     As luck would have it the two sets of original harnesses yielded the correct part numbers and vendor codes !!!! I had to use a light solvent to get the tags unwrapped from themselves but the procedure paid off...
    I'm in contact with ECS to get these tags made for an offering with their already vast list of great products...
   
Title: Re: E body Speed Control System
Post by: screamindriver on July 21, 2018, 09:16:12 PM
   I'll post some pics of the lever's barrel disassembly...I won't be doing a complete tear-down of the lever I'm only taking the barrel off for chroming to bring it up to 100%..
  Speaking of chroming..The chrome plating on the barrel as far as I can tell is just that..Chrome plating..I guess the factory wanted to make sure the finish was durable enough to withstand the constant hand contact...Don't confuse this with other interior parts..Most of the E body interior plastic "chrome" was actually a vacuum metalized finish that was sealed with a clear lacquer{AC dash vents,70 cuda and challenger dash script, etc...}..So even when new all it took was a few cleanings with a harsh chemical and your shiny "chrome" finish was either dull or gone completely...
      Fast forward to 2018, it's a little tougher to find a company that's willing to chrome plate a plastic part...I've sent some info to Paul's chrome plating plastics department to see if they can handle the job...
    If anyone has suggestions on a company doing quality plastic chroming post your suggestions please...

   Anyhow here's the proper way to get the selector barrel off the stalk :
  There's a C clip in a groove under the barrel.. The C clip needs to slide off the plastic body evenly so you don't distort or apply pressure to the selector barrel and crack it...
How that's done is to make sure the open ends of the C clip are facing towards the levers script before removal...This puts the ends 180* from the rear access slot in the plastic body...
     The rear slot gives access to the C clip so you can hook it and pull evenly from front and back working the C clip out under the barrel...I wrapped the plastic body of the lever with scotch tape so the C clip didn't scratch the surface on the way off...
    Once the C clip is off there's another metal spacer directly behind it slide that off as well...
Don't pull the barrel just yet...There's a metal spacer with a spring under it you need to note the orientation of that spring as you take the barrel off in the event that spacer goes with it..
And that will get the selector barrel off the plastic body...If you're going deeper the next step would be to remove the plastic body from the metal stalk requiring you to take the Lever's wiring connector off so the wires will pass through the stalk{which you need to do to get the barrel off anyhow}...
  Take your time and don't think " I'm never finding another one if I break this" while you're doing it like me.. :haha:
 
   
Title: Re: E body Speed Control System
Post by: cataclysm80 on September 16, 2018, 04:01:37 AM
Great thread guys, I look forward to participating when I have some time.

Can you edit the first post to include "N88" in the thread title to help people find it?

Sometime before 2009, I had Tom at M&H make reproduction cruise harnesses for me.
I just dug out an original harness tonight along with the M&H reproduction.
I snapped a pic, but for some reason my phone pics are HUGE and the forum doesn't like them, so I'll have to resize the pic on a computer and post it later.

I think the part numbers were legible on my harness originally, but they might not be anymore.

I'm the person with all the exploded view pics from disassembling a cruise lever.

I still have the NOS box for the cruise throttle cable, and it came with both styles of clamps.
I'm accustomed to looking at small block stuff, and someone originally told me that one of the clamps looked like a big block clamp because they're different, and I believed them, but I've become suspicious that the different style might just be for 1969 and older cars.

I do have a lost motion link around here somewhere.
I've also installed cruise without one and it still worked great.

I've been ordering my cruise speedometer cables through Year One, and they work just fine.  They're probably not OE correct like NOS, but I don't have my cars judged.

We also need to include where the firewall hole gets drilled for cruise on each model, and what the correct bracket screws look like.

I have some nice comparison pics of the different brackets also.

Tav
Title: Re: E body Speed Control System
Post by: screamindriver on September 16, 2018, 07:22:22 PM
Hey Tav
  I'll change the title to contain "N88" for an easier search function in the future..

   I know we've discussed the "big block,small block" throttle cable adapter before...Here's something interesting I found at Carlisle this year...70 challenger convertible,383, coded for N88...It had the "big block" adapter...I couldn't catch up with the owner to confirm what parts were original...Obviously some were reconditioned...
Title: Re: E body Speed Control System
Post by: 1 Wild R/T on September 16, 2018, 07:33:04 PM
Quote from: screamindriver on September 16, 2018, 07:22:22 PM
Hey Tav
  I'll change the title to contain "N88" for an easier search function in the future..

   I know we've discussed the "big block,small block" throttle cable adapter before...Here's something interesting I found at Carlisle this year...70 challenger convertible,383, coded for N88...It had the "big block" adapter...I couldn't catch up with the owner to confirm what parts were original...Obviously some were reconditioned...

It has a 340 style upper kick down link...
Title: Re: N88 E body Speed Control System
Post by: screamindriver on September 16, 2018, 07:53:42 PM
And when you see items like that it makes you question what you're actually looking at...I couldn't catch up with the owner...But it wasn't for lack of trying...Here's more pics there's obviously some detailing issues with the parts but I was more interested in what was there more so than the correct finishes...This was the only N88 car I found all weekend BTW...
Title: Re: N88 E body Speed Control System
Post by: screamindriver on September 16, 2018, 08:00:36 PM
more..
Title: Re: N88 E body Speed Control System
Post by: screamindriver on September 16, 2018, 08:06:03 PM
Anyone care to guess what this lever was originally ??
Title: Re: N88 E body Speed Control System
Post by: 1 Wild R/T on September 16, 2018, 10:55:37 PM
Quote from: screamindriver on September 16, 2018, 08:06:03 PM
Anyone care to guess what this lever was originally ??

Likely a C body without tilt.... 
Title: Re: N88 E body Speed Control System
Post by: cataclysm80 on September 20, 2018, 12:46:03 AM
Just remembered, we also need to include info on the vacuum hook up.
2 nipple check valve with power brakes.
Title: Re: N88 E body Speed Control System
Post by: cataclysm80 on October 04, 2018, 10:41:11 PM
OK, here's some E body speed control harnesses.

The one on top is original, and is the same harness that's pictured laying on the white posterboard in the very first picture at the top of this thread.  (It came from a 70 Challenger if anyone is curious.)

The one on the bottom is the reproduction that M&H made for me.  It matches the original very nicely.
Title: Re: N88 E body Speed Control System
Post by: cataclysm80 on October 04, 2018, 10:44:31 PM
One more suggestion...
Maybe we should also add "cruise control" to the name of this topic (by editing the first post).

I know that Speed Control is the proper Chrysler name, but a lot of people who are searching will call it cruise control.
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on October 05, 2018, 06:28:55 PM
Done... Here's a technical question that I haven't gathered enough info to get the correct answer...A power disc brake car had the complete assembly painted{booster and master} black after being mated.. IF the car was coded for N88 at what point was the bracket added ??? It appears the bracket was added after initial assembly judging by the extra set of nuts..That would lead me to believe the N88 bracket would be natural{plated} with no paint...But most I'm seeing are painted black...
Title: Re: N88 E body Speed/Cruise Control System
Post by: anlauto on October 05, 2018, 06:37:54 PM
Quote from: screamindriver on October 05, 2018, 06:28:55 PM
Done... Here's a technical question that I haven't gathered enough info to get the correct answer...A power disc brake car had the complete assembly painted{booster and master} black after being mated.. IF the car was coded for N88 at what point was the bracket added ??? It appears the bracket was added after initial assembly judging by the extra set of nuts..That would lead me to believe the N88 bracket would be natural{plated} with no paint...But most I'm seeing are painted black...

I just debated that question myself....I would think that it was after they were painted black, because all the booster/master assemblies most likely come from an outside supplier pre assembled, and I doubt they would know which ones to install CC brackets on  :alan2cents:
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on October 05, 2018, 06:53:13 PM
Agreed...The NOS bracket I got from Tom{Fc7cuda} cleaned up nicely and it will get installed unpainted unless other documentation proves otherwise...
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on October 05, 2018, 06:59:21 PM
My former N88 equipped 70 R/T SE which I owned from the mid 70's had an un-painted cable bracket...
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on October 05, 2018, 07:16:34 PM
That's good to know...And pretty much sums up the assembly process of it being added after the vendor shipped the parts to the assembly plant as Alan suggested...
Title: Re: N88 E body Speed/Cruise Control System
Post by: E74cuda on October 06, 2018, 08:52:53 AM
I am working on a 1970 Challenger R/T convertible that is a factory cruise control car. I believe that I have most all of the original parts. The information in this thread will be very helpful. Thanks
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on October 06, 2018, 08:54:11 AM
Quote from: E74cuda on October 06, 2018, 08:52:53 AM
I am working on a 1970 Challenger R/T convertible that is a factory cruise control car. I believe that I have most all of the original parts. The information in this thread will be very helpful. Thanks

Wouldn't be a Black U code would it?
Title: Re: N88 E body Speed/Cruise Control System
Post by: E74cuda on October 06, 2018, 09:43:25 AM
Quote from: 1 Wild R/T on October 06, 2018, 08:54:11 AM
Quote from: E74cuda on October 06, 2018, 08:52:53 AM
I am working on a 1970 Challenger R/T convertible that is a factory cruise control car. I believe that I have most all of the original parts. The information in this thread will be very helpful. Thanks

Wouldn't be a Black U code would it?


Hey Randy, red on red N code
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on October 06, 2018, 10:00:12 AM
Quote from: E74cuda on October 06, 2018, 09:43:25 AM
Quote from: 1 Wild R/T on October 06, 2018, 08:54:11 AM
Quote from: E74cuda on October 06, 2018, 08:52:53 AM
I am working on a 1970 Challenger R/T convertible that is a factory cruise control car. I believe that I have most all of the original parts. The information in this thread will be very helpful. Thanks

Wouldn't be a Black U code would it?


Hey Randy, red on red N code

Cool!  Thought it might be Ed Hagerty's old car....  Was along for the ride when some stupid stuff happened in that car..... 
Title: Re: N88 E body Speed/Cruise Control System
Post by: cataclysm80 on October 11, 2018, 11:58:19 PM
Quote from: screamindriver on October 05, 2018, 06:28:55 PM
That would lead me to believe the N88 bracket would be natural{plated} with no paint...But most I'm seeing are painted black...

The ones I've seen are plated (silver colored), with a thin rubberized coating over the end where the cable passes through, to prevent the cable from chafing.
Title: Re: N88 E body Speed/Cruise Control System
Post by: Cratos on December 25, 2018, 07:19:00 AM
I would love do this on the 70RT I am working one and one have a parts source for the turn sig lever?? or a hole kit

thanks
Title: Re: N88 E body Speed/Cruise Control System
Post by: Rrod on March 25, 2019, 01:56:50 PM
Need the lower cruise control cable for70 Challenger from servo to carb linkage. The part number should be 3462371.  Will any other cables work correctly?  Do anyone know what the cable length should be?
Title: Re: N88 E body Speed/Cruise Control System
Post by: JS29 on March 25, 2019, 02:17:38 PM
 :welcome:@Rrod to the best E-body site there is!  :wave:
Title: Re: N88 E body Speed/Cruise Control System
Post by: Cuda Cody on March 25, 2019, 02:42:50 PM
Welcome to the forum @Rrod (https://forum.e-bodies.org/mlist/rrod_4066)   :welcome:
Title: Re: N88 E body Speed/Cruise Control System
Post by: Rrod on March 25, 2019, 05:17:15 PM
Thanks everyone.
Title: Re: N88 E body Speed/Cruise Control System
Post by: Rrod on March 25, 2019, 05:30:13 PM
Quote from: Rrod on March 25, 2019, 01:56:50 PM
Need the lower cruise control cable for70 Challenger from servo to carb linkage. The part number should be 3462371.  Will any other cables work correctly?  Do anyone know what the cable length should be?
. Any help would be appreciated.
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on March 25, 2019, 10:03:02 PM
If you can live with one that works but doesn't have the original type hex nuts at the ends but instead has knurled round nuts check out a Pioneer CA3002...   BTW pay no attention to the only review being a negative, it didn't fit the guys Fiat......  I know they own Chrysler now but they still can't use a Mopar speedometer cable.. :rofl:
https://www.amazon.com/Pioneer-CA3002-Speedometer-Cable/dp/B000C643HI

Correction, you asked for a lower cable but you are describing an actuator cable.....   Not currently serviced, but a used one from a different vehicle should work fine...

Where are you located? Someone might have a spare...
Title: Re: N88 E body Speed/Cruise Control System
Post by: Rrod on March 26, 2019, 05:13:11 PM
Yes you are correct. I had my cables mixed up. What I need is the cruise control actuator cable which connects the cruise control servo to the carb linkage. Part number 3462371 is what the parts book list for 70 Challenger with a big block.  Do anyone know the length of this cable?  Obviously a shorter one would not work but maybe a slightly longer one would.
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on March 26, 2019, 07:52:01 PM
You should be able to use one off a C body or even a later model B,F or even some trucks....
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on March 26, 2019, 09:01:43 PM
Shoot fc7cuda {Tom} a PM he's got a few NOS Big block servo cables in his stash...
Title: Re: N88 E body Speed/Cruise Control System
Post by: fc7cuda on March 27, 2019, 06:01:12 PM
I still have several cables and other misc cruise parts, PM me you email and I'll send you some pics.

Thanks
Tom
Title: Re: N88 E body Speed/Cruise Control System
Post by: fc7cuda on March 27, 2019, 06:04:00 PM
Quote from: screamindriver on March 26, 2019, 09:01:43 PM
Shoot fc7cuda {Tom} a PM he's got a few NOS Big block servo cables in his stash...

Thanks for the shout out Colin, I'm glad the parts worked out well for you.  :ohyeah:
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 04:48:34 PM
It's been a while and it's time for some progress pics of my project.. Here's the deal... My car was originally equipped with N88... It did NOT have a 6bbl.. :haha:... So I wanted the best of both worlds..
I've been lucky enough to find most all NOS components for the system.. Servo, upper and lower speedo cables, brake switch,lost motion link, and even the master cylinder bracket.. I've been finishing it up as time allows and it's now a functioning system..Here's the system in it's current state..
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 04:54:14 PM
 How ??? Obviously the 6bbl's center carb doesn't have the provisions for speed control and I didn't want to modify an original 70 carb to get it done..So I fabricated a bracket that bolts on using the carb's throttle stud giving me the hole for the lost motion link..A 4bbl thermoquad donated it's throttle lever for the needed section...I zinc plated and polished the part for some eye candy...Here's the bracket and another pic with the lost motion link installed..
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 04:58:55 PM
And here's the finished linkage..My fabbed bracket and all NOS parts including the adapter bracket for the throttle linkage...
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 05:06:58 PM
Here's the detail of the servo..The bracket is original to the car..NOS servo and I reused my original wiring to get the correct tracers that wouldn't have been in a repop offering.. The servo diaphragm cover came in a yellow zinc dicromate and I had it replated in a clear zinc ..And I polished the vent cover for a little more eye candy...
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 05:11:18 PM
The hardest part of the system for me to find was the "lower" speedo cable that goes from the servo to the trans..I did end up finding an NOS part..I've included a pic of the package to show how it has a superseded part number that might help someone in the future..Tom, you'll see this one was also scripted with "stewart warner" on the cable..
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 05:18:02 PM
The stalk went back together nicely with no surprises...Just an FYI, the original stalk was in fact nickel plated and cleaned up perfectly {and of course I can't find the assy pics at the moment}... It looks right at home in there and it's been quite a while since it was on the car..
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on February 16, 2020, 06:29:23 PM
Interesting that yours is nickel plated, I've worked on easily a dozen N88 equipped E bodies & they are normally satin argent silver... B & C bodies are nickel or chrome plated...   

Also FWIW my old Sixpack had the little tab for the lost motion link mount... I have no idea why but it did....

Cool your got it all back together... :cheers:
Title: Re: N88 E body Speed/Cruise Control System
Post by: screamindriver on February 16, 2020, 07:26:17 PM
Thanks Randy, I'm happy with the results.. I stumbled on the nickel stalk plating by accident...I was actually going to prep it for paint and by luck had seen it buff the finish while I was wiping it down..So the line I originally though was a paint line was a plating line..
Title: Re: N88 E body Speed/Cruise Control System
Post by: fc7cuda on September 17, 2020, 05:56:23 PM
Great thread.

Is this the correct E-body servo bracket?
Title: Re: N88 E body Speed/Cruise Control System
Post by: anlauto on September 17, 2020, 06:13:10 PM
Yea it looks right in my opinion :bigthumb:
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on September 17, 2020, 09:52:38 PM
Quote from: anlauto on September 17, 2020, 06:13:10 PM
Yea it looks right in my opinion :bigthumb:

:iagree:
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1970GranCoupeConvert on April 07, 2021, 09:24:10 AM
Super happy to have found this thread.

Circa 1987 I retrofitted my 1970 Barracuda to speed control and I used an Imperial system from a wrecking yard.  Back then my 340 had a 6 BBL and when I got off the highway and pressed "resume" I am here to tell ya that the car would "get on it" without my foot on the accelerator pedal...yikes.

The 6 BBL is long gone but I still have the car.

I am now converting to power brakes and because of the booster the Imperial servo bracket no longer works where it was installed because the booster moves the master cylinder too far forward.

To make this work it looks like I now need the non-existent 1970 E-Body bracket or the later 71-73 bracket.  I am OK with not exact parts so if anyone has a source for the later servo mounting bracket I would appreciate the lead.

Also the upper speedo cable donated from the Imperial is 32 inches and since length matters I came up a bit short...so I need the 36 incher...

Any help would be greatly appreciated!!!

Bill

Oh...I almost forgot the dancing bananas...

:banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana: :banana:
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1 Wild R/T on April 07, 2021, 09:40:25 AM
Since you mentioned your okay with non-concourse type parts... The aftermarket does sell speedometer cables for cars with cruise that work fine... They have knurled nuts on the end instead of hex nuts...

https://www.rockauto.com/en/catalog/dodge,1970,challenger,7.2l+440cid+v8,1495993,interior,speedometer+cable,1440
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1970GranCoupeConvert on April 08, 2021, 09:37:12 AM
Thanks for the lead on the cable.

I am trying to find a 1973 B-Body speed control bracket and I will weld up the three holes and then redrill the holes to match the e-body.

Does anyone know where I can get the B-Body bracket?
Title: Re: N88 E body Speed/Cruise Control System
Post by: 1970GranCoupeConvert on September 30, 2021, 05:56:14 PM
Since the E body speed control turn signal lever is hard to find...will a 68-69 B Body work?  It appears to have two yellow wires and a blue and black so I am concerned the switch is not wired the same.

I am OK with the lever being shorter and farther forward...I currently have the 1974 slider switch and it stopped working...so I am looking for options.