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

85 ta 5.0 rear end spline?

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Old Sep 3, 2010 | 02:50 PM
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Car: 1985 Pontiac Trans AM
Engine: 5.0
Transmission: t-5WC
Axle/Gears: 3.23 open diff.
85 ta 5.0 rear end spline?

is it a 7.5 10 bolt 26 or 28 spline?
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Old Sep 3, 2010 | 03:43 PM
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From: Ogden UT
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Re: 85 ta 5.0 rear end spline?

26 spline
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Old Sep 3, 2010 | 03:46 PM
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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: 85 ta 5.0 rear end spline?

More 10-bolt info, should you desire to check it out:

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

JamesC
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Old Sep 3, 2010 | 05:12 PM
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Re: 85 ta 5.0 rear end spline?

Make sure it's a 10-bolt before you buy anything: that was the 1st year of the 9-bolt, and that was the kind of cars it came in.

Similarly, if it's a 10-bolt, it may therefore not be original to the car, meaning you might have to take it apart and look at it to be sure what it really is.
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