Drive Pinion Nut

CAUTION:

Be sure to follow the correct procedure for setting the bearing preload when the nut is installed. See COMPANION FLANGE REAR REMOVAL/INSTALLATION or for the rear axle or COMPANION FLANGE REMOVAL/INSTALLATION for the front axle.

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 sealant on the threads and nut face.