What gear oil in the diff?

User0511 · Aug 25, 2016

OK 75W- 90
or 80W 90

or 75 - 140?

And if I use synthetic, do I still need to Sure grip limited slip additive part No4318060AC-M?

rcmaniac791 · Aug 25, 2016

If I recall correctly, I think it's 80 90.

80mirada · Aug 25, 2016

And you still need limited slip additive unless you buy the lube that is marked for limited slip