Differential Carrier Assembly - Final Assembly (8.25 S4WD and 9.25 Axles)

DIFFERENTIAL CARRIER ASSEMBLY - FINAL ASSEMBLY (8.25 S4WD AND 9.25 AXLES)

^ Tools Required
- J 8092 Universal Driver Handle - 3/4 in - 10
- J 33842 Pilot Bearing Installer
- J 36609 Axle Tube Bearing Installer
- J 36616 Axle Mount Bushing Remover/Installer
- J 45225 Axle Seal Installer

1. Inspect the alignment mark between the differential bearing adjuster and the differential carrier assembly case. If the line between the differential bearing adjuster and the differential carrier assembly case is not aligned, re-align the 2 components as necessary.

2. Bend the differential adjuster nut lock tabs over the differential adjuster nut sleeves, 8.25 inch axle - both sides, 9.25 inch axle - right side.





3. Install the differential adjuster nut lock, 9.25 inch axle - left side.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the differential adjuster nut lock bolt.
^ Tighten the differential adjuster lock nut bolt to 20 Nm (15 lb ft).

5. Lubricate the clutch shaft pilot bearing with axle lubricant. Use the correct fluid.





6. Install the clutch shaft pilot bearing using the J 33842.





7. Install the clutch shaft to the differential carrier case half.





8. Install the vent hose connector.
^ Tighten the vent hose connector to 28 Nm (21 lb ft).





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

10. Install the new left side inner axle shaft retainer ring.





11. Install the left side inner axle shaft by doing the following:
A. Install the left side inner shaft into the differential carrier assembly until the inner shaft is seated against the differential side gear.
B. While holding the inner shaft against the differential side gear, turn the inner shaft in order to align the splines of the inner shaft with the splines on the differential side gear.
C. Drive the inner shaft into the differential case side gear using a soft-faced mallet until the retaining ring on the inner shaft is fully seated within the groove in the differential case side gear. Pull back on the inner shaft to ensure that the inner shaft is properly retained in the differential case side gear.





12. Install the right side inner shaft bearing into the inner shaft housing by performing the following steps:
A. Install the inner axle shaft housing into a vise. Clamp only on the mounting flange of the inner axle shaft housing.
B. Install the bearing with the square shoulder in using the J 36609 (1) and the J 8092 (2).





13. Install the new right side inner axle shaft seal using the J 45225 (1) and the J 8092 (2).





14. Install the following components into the inner shaft housing:
A. Install the inner axle shaft (1).Carefully tap the inner axle shaft into place with a soft-faced mallet.

Important: Use chassis grease in order to hold the thrust washer in place.

B. Install the thrust washer (with tabs) (5).Ensure the tabs on the thrust washer are aligned with the slots in the inner shaft housing.
C. Install the thrust washer (without tabs) (6).
D. Install the new retainer ring (7) onto the inner axle shaft (1).
E. Determine the clutch gear shim thickness. Adjustments
F. Install the clutch gear shim (9).
G. Install the clutch sleeve (8).
H. Install the clutch fork assembly (11).
I. Install the clutch fork inner spring (10).

15. Apply sealant to the inner shaft housing to differential carrier sealing surface. Use the correct sealant.





16. Install the inner shaft housing to the differential carrier assembly case.

17. Install the inner shaft housing bolts.
^ Tighten the inner shaft housing bolts to 40 Nm (30 lb ft).

18. Install the drain plug and the washer.

19. Install the fill plug and the washer.
^ Tighten the drain plug and the fill plug to 33 Nm (24 lb ft).





Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

20. Install the front drive axle actuator. Apply sealant to the threads of the front axle actuator. Use the correct sealant.

^ Tighten the front drive axle actuator to 20 Nm (15 lb ft).





21. Install the lower differential carrier assembly bushing by performing the following steps:
A. Install the J 21474-18 (1), the thrust bearing (2), the J 36616-2 (3), the J 36616-1 (4), and the forcing screw (5) as shown.
B. While holding the forcing screw, slowly tighten the J 21474-18 until the bushing has stopped against the step on the bushing and is centered within the differential carrier assembly bushing bore.





22. Install the upper differential carrier assembly bushing by performing the following steps:
A. Install the J 21474-18 (1), the thrust bearing (2), the J 36616-2 (3), the J 36616-1 (4), and the forcing screw (5) as shown.
B. While holding the forcing screw, slowly tighten the J 21474-18 until the bushing has stopped against the step on the bushing and is centered within the differential carrier assembly bushing bore.

23. Install the differential carrier assembly. Differential Carrier Assembly Replacement