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Old 05-09-2011, 02:32 PM   #1
remist17
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Join Date: Jul 2009
Location: PA
Posts: 406
10 bolt vs 12bolt GM rear

Need some help. I have a 10 bolt in my 87 short bed step pickup with 3.08 gears. I also have a 12 bolt out of a 1976 1/2 ton long bed with 3.73 with a locker.

Will the 12 bolt bolt in the 87? Are the spring perches the same?

Also I am looking for rims for the truck. I dont know if the 12 bolt has the same back spacing and bolt pattern as the 10 bolt. The 10 bolt is a 5 bolt 3 3/4" backspace.

Any help on this?
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2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40

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