Disassemble Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Do not re-use the old pinion nut. Stake the NEW pinion nut after the final rotating torque is achieved. If the pinion nut is not staked after the final rotating torque is achieved, the nut may lose retention causing loss of vehicle propulsion.

Raise and support the vehicle. Lifting and Jacking the Vehicle
Remove the differential assembly. Differential Replacement (10.5 Inch Axle) , or Differential Replacement (9.5 Inch Axle)
Remove the differential drive pinion gear. Drive Pinion and Ring Gear Replacement (10.5 Inch Axle) , or Drive Pinion and Ring Gear Replacement (9.5 Inch Axle)
For the 8.6 inch axle, use the DT-47688 remover and a press remove the drive pinion bearing and the spacer.
For the 9.5 inch axle, use the J-22912-B puller and a press to remove the drive pinion bearing.
NOTE:
When performing the following service procedure, move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly.

Using a hammer and a brass drift in the slots provided, remove the outer pinion bearing cup from the axle housing.
NOTE:
When performing the following service procedure, move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly.

Using a hammer and a brass drift in the slots provided, remove the inner pinion bearing cup from the axle housing.