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GM 12 bolt rearend
#24389 Mon Jul 15 2002 05:27 AM
Joined: Apr 2002
Posts: 1,727
F
Fox Offline OP
A teacher, but always an apprentice.
Has anybody used or know someone who has used a 12 bolt Gm rear in a AD truck.(1950) I hope to put posi in it, all the good stuff. What are the dimensions, will it fit my truck, what vehicle can it be found in? As for rims they're not going to be too crazy. I'd like to keep a Chev a Chev. Any help will be greatly appreciated. Thanks.


In the Stovebolt Gallery [stovebolt.com]
More pictures here [photos.app.goo.gl]

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: GM 12 bolt rearend
#24390 Mon Jul 15 2002 06:31 AM
Joined: Jul 2002
Posts: 17
E
Member
Camaro Rears are pleantiful and strong. Posi Units are available. Look for between 60 and 62 inches drum to drum (caliper to caliper)
Ed

Re: GM 12 bolt rearend
#24391 Mon Jul 15 2002 11:25 AM
Joined: Apr 2000
Posts: 58
J
Member
a 10 bolt 8.5" would be fine also. Nova is another source

Re: GM 12 bolt rearend
#24392 Thu Jul 18 2002 01:51 AM
Joined: Mar 2002
Posts: 7
R
Member
Gotta watch those Novas though, some of them were really narrow. I have one and I have to get some silly offset wheels to get the tires in the right place.
As for 12 bolts, you can find them in any late 60's SS version Gm muscle car; Impalas, Chevelles, Camaros, etc. Novas from the 70's had 'em too.
You don't really need a 12 bolt under your truck unless you plan to do some real drag racing or put sill ypower to the ground. My 52 is so light in the rear I can light the tires anytime I want to. This is hard on tires but not too taxing on the rear end! grin


'52 Chevrolet 3100 (Rodded of Course)
'97 Eagle Talon TSi(Turbo Baby!)
Re: GM 12 bolt rearend
#24393 Thu Jul 25 2002 09:55 PM
Joined: Jul 2001
Posts: 20
B
Member
I ran a 1964/65 truck 12-bolt truck rear end (they are different from the car 12-bolt) in my '54 3100 for about 10 years when I switched over to an open driveline. I had to take off the coil spring stuff, weld on the leaf spring pad, and have a drive shaft from a newer truck shortned, but the rear end fit just fine. I don't remember the measurements, but there was no discernable difference in looks.


1954 Chevy 3100
454, T-400, GM 14-Bolt Disc brake
Monte Carlo Front Clip

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