FlyBy763 Member Apr 23, 2004 439 0 17 Palm Bay, FL Apr 18, 2005 #1 Apr 18, 2005 #1 What gear oil should I use in my diff? I know it says 80W-90, is synthetic ok? What about 75W-90 synthetic? Obviously friction modifier too...
What gear oil should I use in my diff? I know it says 80W-90, is synthetic ok? What about 75W-90 synthetic? Obviously friction modifier too...