Sep 29, 2019 #1 9 97JF Member Joined Jan 24, 2009 Messages 145 Reaction score 0 Hi, what viscosity oil should I be using for the rear end ? I have a 1997 GT, Thanks
Sep 29, 2019 #2 lwarrior1016 Mr. Secondary Timing Chain Staff Joined Sep 22, 2014 Messages 8,484 Reaction score 4,236 Location South Mississippi 75w-140 is what’s recommended and what I always use.