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View Full Version : Will chevy gears fit my pontiac rear?



George
12-07-2004, 09:54 PM
Ive got a pontiac 8.2" rear and a posi unit for it, but I want to go to something like a 3:73, but can I use chevy 8.2" gears? I know most of the other parts are different especially considering the BOP rears dont use C-clips, but I dont know if the gears are different

THanks.

derekf
12-08-2004, 04:03 AM
Jegs shows different part numbers for BOP and Chevy so it looks like they will not.

MrQuick
12-08-2004, 11:39 PM
the differences are in the pinion shaft diameter and ring bolt size.

George
12-09-2004, 09:53 PM
THat's what I figured, just wanted to check cause Chevy stuff is so easy to find.

sporter
12-24-2004, 07:34 AM
The Chevy gears are supposed to work in the BOP rear but you have to use the chevy pinion yoke, which is weaker than the BOP (25 spline vs 27) and takes a different u-joint. Probably better to use the BOP 3.55 or 3.90 gears and slightly shorter/taller tires.