gear oil weights April 23, 2006, 11:11:45 PM what is the suggested gear oil weight for the 8.8 rear end out of an 87 turbo coupe?I am rebuilding one and cannot seem to find the info.thanks Quote Selected
gear oil weights Reply #1 – April 24, 2006, 10:28:11 PM Originally I think it was 80W90, but I have been using Motorcraft 75W140 full synthetic on everything now. It works really good. Quote Selected