Oil Seal and/or Bearing Replacement
REMOVAL PROCEDURE^ Tools Required
- J2619-01 Driver Handle.
- J23690 Axle Shaft Bearing Installer.
- J29709 Axle Shaft Bearing Installer
- J21128 Axle Shaft and Pinion Seal Installer.
- J29713 Axle Shaft Bearing Installer (9 1/2 in ring gear)
1. Raise the vehicle on a hoist.
2. Remove the wheel and tire assembly.
3. Remove the brake drum (6).
4. Clean the dirt from the carrier cover (4) and surrounding area.
5. Remove the carrier cover bolts (3) and clips.
6. Remove the carrier cover (4) from the housing (2).
^ Catch the oil in a drain pan
^ Remove any gasket material
7. Remove the screw.
8. On axles without a locking differential, remove the pinion shaft.
9. On axles with a locking differential, remove the shaft part way, and rotate the case until the pinion shaft touches the housing.
10. On axles with a locking differential, use a screwdriver or similar tool to enter the differential case and rotate the lock (1) until it aligns with the thrust block (2).
11. Push the flange of the axle shaft toward the differential.
12. Remove the lock from the button end of the axle shaft.
13. Remove the axle shaft (7) from the housing (2).
IMPORTANT: Carefully slide the axle shaft (7) out in order not to damage the seal (9).
14. Use the J23689 to remove the seal (9).
15. Use the J23689 for 8 1/2 and 8 5/8 inch ring gear axles or the J29712 for 9 1/2 inch ring gear axles to pull the bearing (1) from the housing (2).
16. Insert the tool into the axle bore so that it grasps behind the bearing.
17. Tighten the nut and washer against the face of the bearing.
18. Pull the bearing out using the J2619-01.
19. Inspect all parts. Replace as necessary.
INSTALLATION PROCEDURE
1. Lubricate the axle cavity between the seal lips and the bearing with wheel bearing lubricant.
2. Install the bearing using the J23690 for 8 1/2 and 8 5/8 in ring gear axles and the J29709 for 9 1/2 in ring gear axles.
3. Drive the bearing into the axle housing until the tool bottoms against the tube.
4. Install the seal using the J21128 for 8 1/2 and 8 5/8 in ring gear axles and the J29713 for 9 1/2 in ring gear axles.
5. Drive the tool into the bore until the seal bottoms flush with the tube.
IMPORTANT: Carefully insert the axle shaft (7) in order not to damage the seal (9).
6. Install the axle shaft (7) into the housing (2).
7. Slide the axle shaft (7) into place allowing the splines to engage the differential side gear.
8. On axles without a locking differential, place the lock (8) on the button end of the axle shaft (7).
9. On axles with a locking differential, keep the pinion shaft partially withdrawn.
10. On axles with a locking differential, place the lock (1) on the axle shaft (3) so that the ends are flush with the thrust block (2).
11. Pull the shaft flange outward in order to seat the lock in the differential side gear.
12. Align the hole in the pinion shaft with the screw hole in the differential case.
IMPORTANT: Anytime a differential pinion shaft locking screw is removed, coat the screw threads with Loctite 242 before reinstalling. The screw has an adhesive coating in order to prevent the screw from loosening in the case. Removing the screw removes the adhesive on the screw.
13. Install the screw
^ Tighten the screw to 3.4 Nm (25 lb ft).
NOTICE: Refer to Fastener Notice in Service Precautions.
14. Install the carrier cover gasket or RTV (if used).
15. Install the carrier cover (4).
16. Install the carrier cover bolts (3) and clips.
^ Tighten the bolts (3) in a crosswise pattern to 27 Nm (20 lb ft).
17. Install the brake drum (6).
18. Install the wheel and tire assembly.
19. Lower the vehicle.
20. Fill the housing with axle lubricant to the filler plug hole level.