jordanz28ss

I need to change my gear oil. I have 3.73 gears with the aburn limited slip.
what is the best gear oil to use and what is the part number or oil number? and how much of the gm posi addidtive do I need to add along with some friction modifier?

This will be my first attemped in changing the gear oil so thanks for the help!

4L60bliss

GM Posi additive is friction modifier...
AFAIK, Auburn units don't need addtive, only the Eatons.

firechicken_3

iTrader: (4)

i got an auburn, USE the gm's additive, if you don't your car will growl and make angry sounds while turning corners, epsecially at low speeds, and as far as gear oil goes, any 75w-90, will work most prefer a synthetic version like mobil or amsoil puts out

edit by the way you need one bottle of the gm stuff its like $8 bucks at the dealer, just ask for limited slip additve they will know what you want, just check to make sure they hand you the right stuff before you walk out the door. they sell several different things in a similar bottle, i got handed the wrong stuff once

ede

mobil 1 or amsoil is all i use i ithnk it's 75w-90 and gm additive, don't use any other additive.