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 Post subject: WTB- Posi rear for '77 Pontiac B-body. '73-77 GM A & G-body
PostPosted: Thu Mar 09, 2017 8:32 am 
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Joined: Tue Aug 05, 2008 11:22 pm
Posts: 218
Location: Newtown, CT
My son is looking to get a little more acceleration out of his tank. The 2.41 gears in it now are great cranking down the interstate, but not so good for acceleration. Looking for a complete rear to swap in. GM 8.5 posi rear, Ideal would be 3.23 ratio or so, but will take anything from 3.08 on up.

These rears were in GM B-body (full size) from 1977 up through the mid '90s. In a lot of cop cars from that era. Also rears from '73-77 A-body (LeMans, Chevelle, Cutlass, Skylark, Etc.) and G-body (Grand Prix, Monte Carlo) will be direct bolt in.

Let me know if you've got one- or know where one is.

_________________
Jeremy Benson

1969 Lemans 350HO convertible, Limelight Green. 12.65 @107.4, 1.78 60 foot.
1979 Trans Am 400, 4 speed, WS-6 Sundance Yellow


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