http://www.youtube.com/watch?v=3zmFk_o8208

ever since this night it will one leg occasionally and i hate when this happens.. do i need a new diff, or should i change the fluid and hope for the best?

oh yeah listen to the queer talking about how "efficient" my vehicle is i cant help but laugh everytime i here him talk in this video haha

Jeremy

 

Try changing the fluid and adding friction modifier. If you still get the "one wheel peel" your diff is going to need to be changed soon.

 

i talked to the guys at kragen and they said the same. they said to add 4 oz of the limited slip fluid, is that the same as the friction modifier?

 

yeah ive had the same problem from time to time...i just had my rear end rebuilt too after shreading some 4.10 gears...ill pry have my fluid changed out and see what happens.

 

Typically the limited slip additive is for NVH purposes and is not so much to assuring the two sides 'grab' equally. You can give it a try and change the fluids, but you may need a new differential.

 

Years ago GM had a diff additive (whale oil) but it was only to eliminate rear end noise / chatter. I would do a fluid change but be sure to let the old stuff drain throughly. I'd jack the car up so the front end is higher than the rear, pop the cover and let it sit over night and drain. I would refill with a synthetic rear end fluid. Just my 2 cents.

 

Synthetic will not work for the stock differentials in our cars. We tried it in mine and the diff. will make all kinds of noise when turning. I had to put in the recommended GM fluid with the GM friction modifier to fix it.