Posted By: Sponge
Differential Oil - 04/18/09 07:43 PM
What is the best oil to put in an 8 3/4 with a sure-grip?
Posted By: Mopar1
Re: Differential Oil - 04/18/09 11:45 PM
All I ever used was 80W90 with a bottle of sure-grip modifier. Most of the diffs out there have lasted for forty years with it.