Actually, <img src="/forums/images/graemlins/smile.gif" alt="" /> it's 5W-30 for the tranny, unless you are living in the desert, then you can use 40wt. But, I don't think you will a) find 40 wt, or do many of us live in places where it is constantly above 90*F.

As for the diffs, Steve is correct. 80w-90 if you are living in more temperate regions, 90wt if you are a bit warmer than that, but that is splitting hairs and you will do just fine with either one.

Good Luck,
Michael