Drive Pinion Nut Leakage

NOTE: Be sure to follow the correct procedure for setting the bearing preload when the nut is installed.

On some high-mileage units, oil may leak past the threads of the pinion nut. This condition can be corrected by removing the nut and applying Pipe Sealant With Teflon D8AZ-19551A or equivalent meeting Ford specification WSK-M2G350-A2 on the threads and nut face.

Axle lubricant level should be 9.56 mm (0.38 inch) below the bottom of the fill plug hole. Make sure the axle housing vent is not plugged with dirt or debris.