Which Rear end Gear Oil??

FordStang said:
Installed my 3:73's just wondering which gear Oil do i use and how many quarts do i need? Also how much friction modifier should i get?
What do they recommend with the FMS gears
Don't waste your money on a high dollar gear oil. It's all the same stuff. Motor oil is a little different. Go over to Ford and tell them what you are doing. They should sell you 3 quarts of gear oil and a 4 oz. bottle of friction modifier.

Joe