B-body 8-3/4 rear housing

[dave73]

Found what I think is a b-body 8-3/4 rear housing. Perch center to center is 44". Saying 60 1/4" end to end, but that doesn't seem to match up with measurements I've read for b-body rears but maybe I'm wrong?

Pictures below. Guy is asking $250, what would you pay?

[RUNCHARGER]

Axle splines look okay. If the wheel bearings were usable I might pay $200 if I needed one. You don't trip on them like you used to.

[JonH]

Check out this site. Looks like from a 68 to 70 b body, or someone has moved the spring perches. Just be aware the overall width will affect wheel backspacing.

https://www.bigblockmopar.nl/tech/mopar-rearaxle-dimensions/

[fc7cuda]

I sold 2 at Carlisle for $125 ea. Clean Texas parts.

For reference:

'68-'69 B-body 54 15/16" housing, 60 1/16" axle flange to flange, 44" perch

'70 B-body 54 15/16" housing, 60 1/16" axle flange to flange, 44" perch

Good luck

[gzig5]

I got a 67 B-body unit for $110 with the axles.  I'm not sure of the bearing condition though so that might be another $70 I need to spend.  With good bearings $200-$225 seems like an OK deal.  Problem is that shipping these is expensive so you pretty much are captive to your local supply.

[dave73]

Just talked to the guy, wheels bearings are no good. He will go down to 100 bucks. I might pick it up. How much power will this take before it grenades? I would be putting it behind a stroked 440 and a 4 speed. Will my ebody chunk bolt into this?

[autoxcuda]

Just talked to the guy, wheels bearings are no good. He will go down to 100 bucks. I might pick it up. How much power will this take before it grenades? I would be putting it behind a stroked 440 and a 4 speed. Will my ebody chunk bolt into this?

What specific tire size and model are you running out back?

All street driven?

If drag strip use, how much?

[dave73]

Current tire is 275/60/15 bf Radial t/a, street driven. If I go b body width was going to get 15x10 wheels and stuff as large a tire under there as possible. No drag use

[RUNCHARGER]

$100 is a deal I think. Any 8 3/4 chunk will work in there. A 440, 4 speed will break it eventually with sticky tires but not right away. A 440, 4 speed with slippery street tires probably won't put the hurt on it for a while.

[1 Wild R/T]

$100 is a deal I think. Any 8 3/4 chunk will work in there. A 440, 4 speed will break it eventually with sticky tires but not right away. A 440, 4 speed with slippery street tires probably won't put the hurt on it for a while.

I've got a buddy with a Ray Barton built 440 in front of a 4spd & an 8 3/4 He's been driving his Challenger like that for over ten years & hasn't hurt it yet..... And he doesn't have an RBRE engine to idle around, it its beaten on some.... Not like when we were kids but enough that a weak axle would go boom....

Then there's Thumper Dart on Moparts, he's still running his 8 3/4, been in the 9's now for at least five years......   

Yes a Dana is tougher but don't sell an 8 3/4 short Chevy guys wish their 12 bolt was that tough......

[RUNCHARGER]

Yep: The guys at the Hot Rod shop were talking about all the 12 bolts and Munchies they broke and I just said I hardly ever break stuff. Then I told them maybe they should do what Grumpy did and put Mopar Powertrains in their Chebbies if they wanted to end all their problems.

[GrandpaKevin]

The stock 8 3/4 axles in my 73 Challenger did well behind my 440 with Hemi 4 speed with street tires, then I took the car to the local drag strip with fancy new ET Street tires.
The stock axles made  three 12 second passes, then I decided to really launch the car hard!
Broke the axle right on the starting line

The price on the B body housing sounds good.
I wouldn't trust those 50 plus year old stock axles or bearings.

I would get a set of new HD axles (with new bearings installed) from Dr. Diff with longer/stronger wheel studs so you can fine tune your tire clearance with wheels spacers if needed.
http://www.doctordiff.com/axle-pkg-stock-length-mopar-5x4-1-2-bolt-pattern-pair.html
If you call Cass(Dr. Diff) with your housing measurements he will know the exact axle length you need.

[Katfish]

I wouldn't pay more than $100.
I had a complete e-body 8.75 WITH 3.55 gears I couldn't sell for $300.
Sold just the center section for $250, now I'm stuck with the housing and axels ......