Diesel Data: Automotive Repair

Differential Output Shaft Bearing: Service and Repair



Inner Axle Seal and/or Bearing Replacement - Front Drive Axle

Tools Required
* J 2619-01 Slide Hammer
* J 29369-2 Bushing and Bearing Remover (2-3 inch)
* J 36609 Axle Tube Bearing Installer
* J 45225 Axle Seal Installer
* J 8092 Universal Driver Handle - 3/4 in - 10

Removal Procedure




1. Raise the vehicle. Refer to Vehicle Lifting.
2. Drain the differential carrier assembly. Refer to Lubricant Replacement - Front Drive Axle.
3. If replacing the right side seal, perform the following steps:

* Remove the inner axle shaft and housing assembly from the differential carrier case assembly.
* Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
* Install the J 29369-2 behind the inner axle shaft seal.
* Install the J 2619-01 (2) to the J 29369-2 (1).
* Remove the inner axle shaft seal using the J 2619-01.




4. If replacing the right side bearing, perform the following steps:

* Remove the inner axle shaft and housing assembly from the differential carrier case assembly.
* Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
* Install the J 29369-2 behind the inner axle shaft seal.
* Install the J 2619-01 (2) to the J 29369-2 (1).
* Remove the inner axle shaft seal using the J 2619-01.
* Install the J 29369-2 behind the inner axle shaft bearing.
* Install the J 2619-01 (2) to the J 29369-2 (1).
* Remove the inner axle shaft bearing using the J 2619-01.




5. If replacing the left side seal and/or bearing, perform the following steps:

* Remove the differential carrier assembly.
* Place the differential carrier assembly into a vise.
Clamp only on the mounting flange of the differential carrier assembly case.
* Remove the inner axle shaft using a hammer and a brass drift.
* Install the J 29369-2 (2) behind the inner axle shaft seal or the inner axle shaft bearing as necessary.
* Install the J 2619-01 (1) to the J 29369-2 (2).
* Remove the inner axle shaft seal and/or the inner axle shaft bearing using the J 2619-01.

Installation Procedure




1. If installing the right side bearing, perform the following steps:

* Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
* Install the bearing with the square shoulder in using the J 36609 (1) and the J 8092 (2).

2. If installing the right side inner axle shaft seal, perform the following steps:

* Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.




* Install the new axle shaft seal using the J 45225 (1) and the J 8092 (2).

3. Install the inner axle shaft into the inner axle shaft housing.
Carefully tap the inner axle shaft into place with a soft-faced mallet.
4. Install the inner axle shaft and housing assembly to the differential carrier case assembly.




5. If installing the left side bearing and/or seal, perform the following steps:

* Install the bearing with the square shoulder in using the J 36609 (2) and the J 8092 (1).
* Install the new axle shaft seal using the J 45225 and the J 8092.
* Install the inner axle shaft into the differential case side gear using a soft-faced mallet until the retaining ring on the inner axle shaft is fully seated within the groove in the differential case side gear.
* Pull back on the inner axle shaft to ensure that the inner axle shaft is properly retained in the differential case side gear.
* Install the front differential carrier assembly.

6. Fill the differential carrier assembly. Use the proper fluid. Refer to Lubricant Replacement - Front Drive Axle.
7. Lower the vehicle.