What weight gear oil do I use for a Dana 30 w/ an ARB? I'm remembering I had to do something special, but can't remember what it was. I try to buy all Royal Purple.
I don't remember it's the 140 ? I used Lucas in my 30 with arb and was good. With my spartan rear did the same but added special slip? Oil cause it made crazy noise which I later found was normal. Sounded very not normal but whatever
75-140 gl-5, this oil will cover all viscosity ranges from crawling to highway use. No limited slip additive is needed unless your relying on clutchs .