i have a 91 camaro RS and i googled the size of the differentals and what size ring and pinion was required cause the 10 bolt is simple i thought... But i dont know what size it is. Theres like 5 different size gm ten bolts and i cant figure this out. Could you help me? Please thank ya. Is it a 27 spline and is it like 8.5? I just need the all sizes and dimensions on this. Even if its 2.73 i am going to swap gears ring and pinion i just need all the gm ten bolt spec fors this to do so

 

stock would be the 7.5, and 91 iirc should be 28 spline. If you plan on making power I would go with an aftermarket diff.

 

Not that it matters, but your 91 has a 7.6 (vs the 7.5) with 28-spline axles. Check the 10-Bolt FAQ at the top of the page for all the info you require.

JamesC

 

thanks ill check it out. What kinda differentals would you prefer? Im looking to spend some $$ on drivetrain if it meets application demand.