Inner Axle Seal and/or Bearing Replacement
INNER AXLE SEAL AND/OR BEARING REPLACEMENT - FRONT DRIVE AXLETools Required
^ J 8098 Universal Driver Handle - 3/4 in - 10
^ J 2619-01 Slide Hammer
^ J 29369-1 Bushing and Bearing Remover
^ J 29369-2 Bushing and Bearing Remover (2-3 inch)
^ J 36609 Axle Tube Bearing Installer
^ J 45225 Axle Seal Installer
Removal Procedure
1. Raise the vehicle.
2. Drain the differential carrier assembly.
3. If replacing the right side seal and/or bearing, perform the following steps:
3.1. Remove the inner axle shaft and housing assembly from the differential carrier case assembly.
3.2. Remove the clutch fork assembly components and the inner axle shaft from the inner axle shaft housing.
3.3. Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
3.4. Install the J 29369-1, 8.25 inch axle, or the J 29369-2, 9.25 inch axle, behind the inner axle shaft seal or the inner axle shaft bearing as necessary.
3.5. Install the J2619-01 (2) to the J 29369-1 or the J 29369-2 (1).
3.6. Remove the inner axle shaft seal and/or the inner axle shaft bearing using the J 2619-01.
4. It replacing the left side seal and/or bearing, perform the following steps:
4.1. Remove the differential carrier assembly.
4.2. Place the differential carrier assembly into a vise.
Clamp only on the mounting flange of the differential carrier assembly case.
4.3. Remove the inner axle shaft using a hammer and a brass drift.
4.4. Install the J 29369-1, 8.25 inch axle, or the J 29369-2, 9.25 inch axle, behind the inner axle shaft seal or the inner axle shaft bearing as necessary.
4.5. Install the J 2619-01 to the J 29369-1 or the J 29369-2.
4.6. 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:
1.1. Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
1.2. Install the bearing with the square shoulder in using the J36609 (1) and the J 8092 (2).
2. If installing the right side inner axle shaft seal, perform the following steps:
2.1. Install the inner axle shaft housing into a vise.
Clamp only on the mounting flange of the inner axle shaft housing.
2.2. Install the new axle shaft seal using the J36600, 8.25 inch axle, or the J 22833, 9.25 inch axle.
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 clutch fork assembly components.
5. Install the inner axle shaft and housing assembly to the differential carrier case assembly.
6. If installing the left side bearing and/or seal, perform the following steps:
6.1. Install the bearing with the square shoulder in using the J36609 (1) and the J 8092 (2).
6.2. Install the new axle shaft seal using the J 36600, 8.25 inch axle, or the J 22833, 9.25 inch axle.
6.3. 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.
6.4. Pull back on the inner axle shaft to ensure that the inner axle shaft is properly retained in the differential case side gear.
6.5. Install the front differential carrier assembly.
7. Fill the differential carrier assembly. Use the proper fluid.
8. Lower the vehicle.
Inner Axle Shaft Shim Adjustment
Tools Required
^ J 8092 Universal Driver Handle - 3/4 inch - 10
^ J 36609 Axle Tube Bearing Installer
^ J 36600 Output Shaft Seal Installer (8.25 inch axle)
^ J 22833 Housing Drive Seal Installer (9.25 inch axle)
^ J 34672 Depth Gage
^ J 8001 Dial Indicator Set
The front drive axle clutch gear shim needs to be measured and adjusted if any of the following parts are replaced:
^ The inner axle shaft
^ The inner axle shaft housing
^ The output shaft
^ The differential carrier case
^ The ring and pinion gears
^ The differential case assembly
^ The bearings
^ The carrier connector
Front drive axle clutch shims are available in the above sizes
1. Install the inner axle shaft bearing with the square shoulder in using the J 8092 (1) and the J 36609 (2).
2. Install the new inner axle shaft seal using the J 36600, 8.25 inch axle, or the J 22833, 9.25 inch axle.
3. Install the following components into the inner axle shaft housing, 8.25 inch axle:
3.1. Install the inner axle shaft (1) into the front drive axle housing (4).
3.2. Install the thrust washer (5)
3.3. Install the retaining ring (7) into the front drive axle clutch gear (6).
3.4. Install the front drive axle clutch gear (6) onto the inner axle shaft (1).
Drive the front drive axle clutch gear (6) into place with a plastic hammer.
4. Install the following components into the inner axle shaft housing, 9.25 inch axle:
4.1. Install the inner axle shaft (1) into the front drive axle housing (4).
4.2. Install the thrust washers (5, 6).
4.3. Install the retaining ring (7) into the inner axle shaft (1).
Important: In order to obtain an accurate measurement, the inner axle shaft must be moved outwards before measuring.
5. Push on the inner end of the inner axle shaft and move the shaft outboard as far as it will go.
6. Using the J34672, measure the distance from the edge of the front drive axle clutch gear to the machined flange surface of the inner axle housing-
7. Using the J3461-2, measure the distance from the machined surface of the differential carrier housing to the outer surface of the front drive axle clutch shaft.
8. Subtract the measurement obtained in step 6 from the measurement obtained in step 7.
9. The correct shim size will be one size smaller than the figure obtained in the previous step,
Note the following examples:
^ If the figure obtained in step 8 was 3.53 mm (0.139 inch), use a 3.30 mm (0,130 inch) shim,
^ If the figure obtained in step 8 was 3.30 mm (0.130 inch), use a 3.05 mm (0.120 inch) shim.
Alternate Adjustment Method
Important: Use this method only if the proper tools for calculating the shim size are unavailable.
1. Install the original shim to the shaft.
Use the chassis grease in order to hold the shim in place.
2. Install the assembled axle tube and the shaft to the carrier.
Do not use sealer at this time.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the bolts.
Tighten the bolts to 40 Nm (30 lb ft).
4. Measure the shaft end play using the following procedure:
4.1. Install the J8001 or the equivalent on the axle tube end.
The plunger of the indicator must be at a right angle to the axle flange.
4.2. Move the shaft back and forth and read the end play.
The correct end play is 0.03 - 0.51 mm (0.001 - 0.020 inch).
4.3. If the end play is incorrect, install a thicker or thinner shim as needed in order to bring the end play into the specified range.