Transmissions and Drivetrain Need help with your trans? Problems with your axle?

any 3rd gen posi rear in my '83 T/A?

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Old Aug 28, 2011 | 08:31 AM
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Daytona_83's Avatar
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From: Duluth, MN
Car: 1983 Pontiac Trans Am "Daytona"
Engine: LG4 305 V8
Transmission: T5 5-speed
any 3rd gen posi rear in my '83 T/A?

I need a new diff in my '83 Trans Am and I don't want to buy new. Would any posi rear end from an 82-92 3rd gen work on my car with no modifications? I'm obviously looking for a disk brake unit since that's what my car has. Thanks.
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Old Aug 28, 2011 | 08:44 AM
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JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: any 3rd gen posi rear in my '83 T/A?

Originally Posted by Daytona_83
I need a new diff in my '83 Trans Am and I don't want to buy new. Would any posi rear end from an 82-92 3rd gen work on my car with no modifications?
Check the FAQ for L/S types and spline counts:

https://www.thirdgen.org/forums/tran...-10-bolts.html

Brake type is not an issue.

JamesC

Last edited by JamesC; Aug 28, 2011 at 08:45 AM. Reason: Late Night
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