loggerman76

could someone tell me what kind of rear end my 1991 rs camero has in it ,its the original one that came in it. 7.5,8.5,8.8?? what about the ratio? i want to put a locker in it, and maby a set of lower gears. what is a good street/strip gear ratio?? thank you

ct91rs

Ring gear should be 7-5/8 (located on bottom center of i.d. tag)

'91 RS axle ratio -
V6 manual trans: 3.42 auto: 3.23
V8 manual trans: 3.08 auto: 2.73

Sure you want lower gears? Most people want higher gears, you lose a bit of top speed, but it gives you more low-end torque. If you want to keep it streetable, as a daily driver, I wouldn't go higher than 3.73.

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“When a whole nation is roaring Patriotism at the top of its voice, I am fain to explore the cleanness of its hands and the purity of its heart.” - Ralph Waldo Emerson

tcfco2005

ya dont go over 3.73's id probably go with either 3.73's or 3.42 i have 3.42 and i enjoy them alot....i even get better gasmilage then when i had my 2.73

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1991 RS
305 T.B.I.
700-R4

loggerman76

im looking to install a locker/spool any suggestions? how do i tell if its a 28 spline?