it is time for the rear axle oil change. its making a clunking noise on sharp turns. Just curious as to what kind of rear axle oil everyone uses. I have heard Torco is good stuff.

and for the procedure all you need besides tools:
*new gasket
*new oil
*gm additive

right?

 

I'm tempted to let the mobile 1 place by my house do it on my TA, they charge 33$ with the additive.

 

your right for the GM additive as I found out


Thought I would change the rear gear oil got some synthetic Mobil 1, and some "limited slip" additive from Autozone. Did the change and at the same time I did my back brakes.

Soon after the car wold "jerk" around sharper corners at low speeds say at a stop sign or turning into my street. After checking the brakes and rear I narrowed down to the rear end thought it might be on the way out so I took it to a GM dealer they serviced with all GM oils and additive and has been smooth ever since.

 

I just used whatever was at Autozone, but don't forget the GM limited slip additive. Get it at your local GM dealer.

 

Royal Purple Synthetic with of course the GM additive

 

would this stuff work good?

 

I always use GM fluid and the addive slip. Never had any issues. I used other stuff and didnt like it.

 

i used lucas oil heavy duty 80-90W with the additive aurburn sent me, i woulda used syn but auburn recommended non-syn. i also accidentally bought some gm additive or 7 bucks. just remember for every quart of gear lube you need 3oz of limited slip additive.

 

i used pennzoill 80w90 hd plus; it has the additive already in it.

 

I used mobile 1 75w-90 w/o additive. No problems.

 

Cheap generic 75w90 and the GM additive. Works fine.

 

Wolfs Head 80W-90

 

Additive? I don't need no stinking additive...

























...in my 9"/detroit locker combo

 

LE is the best, but expensive. Lucas is the next in line. Torco was "once" a very good oil, but they changed their formula........ and always add the GM posi additive.

 

I used some Castrol non synthetic gear oil of the correct viscosity , I put this same stuff in the final drive on my bike. Just plain ole Castrol and the Gm additive of course.

edit: works fine, great, no problems