Re: [FWDLK] Hi, rear end!

Before the 8 1/4, Mopar used the 7 1/4 and the 8 3/4 in A-bodies.

At first, it was all 7 1/4. I've torn up a few of those.

Then, the 8 3/4 was used, but I know of no definitive rules for this application.

I parted out a 1970 Dart with factory 318, 2 barrel, automatic, and 8 3/4 rear.

It was never a raced or changed application.

I still have that rear assembly.

Tom S

southern Ohio

Hi Neil,
Hate to burst your bubble but the A-body series never came with a 8 3/4 rear when they had a small block. A 318 would be a low-line V8 for that car, so they would all be 8 1/4 rears. Not nearly as strong, nor are there many parts available.
If you already have an 8 3/4 there are MANY sources for that ratio rear- Mosler is the first that comes to mind, or Mancini Racing. As for strength, I always go for a 489, tapered shaft case, they are stronger than the 741 or 742. But it depends on what you want to do with it.

Have Fun,
Charles.

---- eastern sierra Adj Services <esierraadj@xxxxxxxxx> wrote:
> I'm interested in installing an about 2.94:1 differential (on my car) ,
> and read in my 8/07 Hemmings Classic Car that the early 70's
> Valiant/Dart with the 318 V/8 had this ratio.
>
> Would this third-member be for a 8 3/4" rear end; which series would it
> be (741? ), and would it bolt up to "our" axle housings????
>
> I haven't started calling on finding one, which will, undoubtedly
> require an overhaul, anyway.
>
> Anyone know of a w.y. that would specialize on the Vals/Darts?
>
>
> Neil Vedder
>
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