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Old 11-02-2014, 08:55 PM
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Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 21,708
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What year 8.5 C clips? late 70s are actually 30 1 1/6 to 30 1/8 and Moser has them in 28 and 30 spline. Same length as 12 bolts but the 10 bolt has a shorter "button" on the cross shaft side of the C clip.

http://www.moserengineering.com/axle...nte-carlo.html

Too much free play can be because the clutch pack in the posi is worn.

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed