It is that big fully floating differential.
I got 3 cans of Mobil 1 75w-90 and 8 oz of posi additive and also RTV from dealership. They say not to use a gasket. Must also make sure the surface is clean.
BTW this is 89 F250 - I presume the fluid is original. It is not very high mileage however.
[ January 16, 2004, 01:21 AM: Message edited by: pacem ]
I got 3 cans of Mobil 1 75w-90 and 8 oz of posi additive and also RTV from dealership. They say not to use a gasket. Must also make sure the surface is clean.
BTW this is 89 F250 - I presume the fluid is original. It is not very high mileage however.
[ January 16, 2004, 01:21 AM: Message edited by: pacem ]