differential?????
oh yea, its on a 10 bolt-02 WS.6
You can find this in the owner's manual. Otherwise, 75w90 or 80w90 will work fine. It is not necessary to use synthetic oil. Also if you have an auburn carrier you will need the limited slip additive.
Fill it to the bottom of the filler plug hole.You'll have to stick your finger in there to check when you're close.The manual say's 4 ounces (118ml) of limited slip diff.lube additive (GM part # 1052358)
Last edited by rod214; Dec 5, 2006 at 09:34 PM.


