For 1990-2009 cars

#### Tools Required

J 42108 Pinion Seal Driver

1. Inspect the differential drive pinion gear bearing preload.
2. The ring gear and the differential drive pinon gear may require replacement if the rear axle was operated for an extended period with very loose differential drive pinion gear bearings.

Remove the differential drive pinion flange. Refer to Differential Drive Pinion Gear Seal and Front Propeller Shaft Flange Replacement .

Important: Support or place a block of wood (3) under the differential drive pinion gear as it is driven from the housing.

3. Use a rubber faced deadblow hammer to drive the pinion gear (1) from the differential housing (2).
4. Remove the differential drive pinion gear bearing spacer (1) from the differential drive pinion gear (2).
5. Remove the differential pinion gear inner bearing from the differential drive pinion gear.

### Drive Pinion Inner Bearing Removal Procedure

#### Tools Required

• | J 22912-B Inner Pinion Bearing Remover

• | J 8608 Inner Race Installer/Driver

• | J 42176 Driver Handle

• | J 42154 Inner/Outer Race Remover/Driver

1. Remove the differential drive pinion seal from the rear axle housing.
2. Perform the following steps to replace the inner bearing:

2.1. | J 42154 Mount the on the J 42176 .

2.2. | J 42154 Position the off center of the race to one side or the other where the tool can firmly seat on the race.

2.3. | Use a hammer or use a press to drive the differential drive pinion gear inner bearing race from the differential housing while rotating the tool around the edge of the race.

3. Remove the differential drive pinion gear shim (1) from the differential housing (2).
4. Use the J 22912-B and a press to separate the differential drive pinion gear inner bearing from the differential drive pinion gear.

### Drive Pinion Outer Bearing Removal Procedure

#### Tools Required

• | J 42176 Drive Handle

• | J 42147 Outer Race Installer/Driver

• | J 42154 Inner Race Remover/Driver

1. Remove the differential drive pinion gear outer bearing from the housing.
2. Use the J 42154 and the J 42176 with a deadblow hammer or a press to remove the bearing.