Fill Plug, Differential

Ford - 7.5 Inch Ring Gear
Oil filler plug 30 Nm (22 ft. lbs.)

Ford - 8.8 Inch Ring Gear
Filler plug 30 Nm (22 ft. lbs.)

Ford - 8.8 Inch Ring Gear High Torque
Oil filler plug 30 Nm (22 ft. lbs.)