7.5" Rear End-What Carrier/Pinion Shims? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

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post #1 of 1 (permalink) Old Jan 26th, 06, 08:40 AM Thread Starter
Senior Tech
Join Date: Jan 2000
Location: Houston, TX USA
Posts: 797
7.5" Rear End-What Carrier/Pinion Shims?

Hey guys & gals! I am working on a 7.5" rear end for a friend of mine. He has asked that I help him install a set of used gears he has that came with the car. Apparently they are the original gears, and someone has swapped in something in the 4 series range. Anyway, I had a couple of questions to ask.

1. Are the carrier & pinion shims the same/similar as to what a 8.5" 10 bolt, or 12 bolt uses? If so, I have a bunch of those around here.
2. What should the back lash be set at? I know 12 bolts are normally .008-.012, 8.5" 10 bolts .006-.010. What about the 7.5"?
3. Anything different about setting these up that I need to be aware of? This will be my first R&P install in a 7.5".

I believe (have not yet dropped the cover to see) that someone used his original open carrier, and added a ring gear spacer to use the higher gear. I will confirm all of this once I start working on it. I just wanted to have the right parts on hand before I begin the work.

1969 383CI, T-56, 12 bolt-3.31 posi, 13" C5 Rotors, PBR Calipers, rear disc system..
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