I have the 28 spline I pulled out of the 78 for a 30 spline and am going to try an put 30s in it to put in my 97 Chevy truck in place of the "Gov Lok" POS.
Tom's of Tom's Differentials passed away a couple of years ago but I think the family is still selling parts. He had a cool 12 bolt conversion for 63-81 Corvette pumpkin IRS.
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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 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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