I have a 10 bolt posi out of a 79 T/A. I need to change the gears, but how do I know if I need 7.2, 8.2 or 8.5? and How do I know how many splines?

The '71-'81 Firebirds and Camaros had the 8.5 10 bolt rear end with 28 spline axles and a 30 spline pinion. Send me a email if you need prices.

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'69 RS/SS396 Pro Street
427 4 speed 9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead (http://www.lubedealer.com/biggearhead)

[This message has been edited by big gear head (edited October 12, 2003).]