Differential Drive Pinion Gear Bearing Replacement (10.5 Inch Axle)
Differential Drive Pinion Gear Bearing Replacement (10.5 Inch Axle)
Special Tools
* J 8092 - Universal Driver Handle - 3/4 in - 10
* J 8608 - Pinion Bearing Cup Installer
* J 8614-01 - Flange Holder and Remover
* J 22761 - Side Bearing Installer
* J 22912-B - Bearing Remove
* J 24433 - Pinion Bearing Installer
* J 37624 - Pinion Bearing Installer
* J 44414 - Pinion Oil Seal Installer
For equivalent regional tools, refer to Special Tools (Tools and Equipment).
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Remove the differential assembly. Refer to Differential Replacement (10.5 Inch Axle) (Differential Replacement (10.5 Inch Axle)) Differential Replacement (8.6, 9.5/9.5 LD Inch Axles) (Differential Replacement (8.6, 9.5/9.5 LD Inch Axles)).
3. Remove the pinion gear bearing retainer. Refer to Differential Drive Pinion Gear Bearing Replacement (8.6 Inch Axle) (Differential Drive Pinion Gear Bearing Replacement (8.6 Inch Axle)) Differential Drive Pinion Gear Bearing Replacement (10.5 Inch Axle).
4. Remove the pinion yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement (Service and Repair).
5. Remove the outer pinion bearing.
6. Using an hydraulic press and the appropriate supports, remove the differential pinion gear.
7. Remove the collapsible spacer.
8. Using the J 22912-B - remover and a hydraulic press, remove the inner pinion bearing from the differential pinion gear.
Note:
* Insert the brass drift in the slots to remove the bearing cup.
* Move the drift back and forth between one side of the cup and the other in order to work the cups out of the retainer evenly.
9. Using a hammer and a brass drift, remove the outer pinion bearing cup.
Note:
* Insert the brass drift in the slots to remove the bearing cup.
* Move the drift back and forth between one side of the cup and the other in order to work the cups out of the retainer evenly.
10. Using a hammer and a brass drift, remove the inner pinion bearing cup.
11. Using a brass drift and a hammer, remove the pinion gear pilot bearing.
Installation Procedure
1. Position the drive pinion pilot gear bearing (1) in the differential housing.
2. Using the J 22761 - installer (1) and the J 8092 - driver (2), install the drive pinion gear pilot bearing in the differential housing (3).
3. Using the J 37624 - installer (2) and the J 8092 - driver (1), install the inner pinion bearing cup in the pinion gear bearing retainer.
4. Using the J 8608 - installer (2) and the J 8092 - driver (1), install the outer pinion bearing cup in the pinion gear bearing retainer.
Note: Press the bearing on until the cone seats on the pinion.
5. Using the J 24433 - installer and a hydraulic press, install the inner pinion bearing.
6. Install the new collapsible spacer.
7. Lubricate the pinion bearings with axle lubricant. Refer to Fluid and Lubricant Recommendations (USA and Canada) (Maintenance).
8. Install the outer pinion bearing into the pinion bearing retainer.
9. Using the J 44414 - installer, install the new pinion oil seal.
10. Install the pinion in the pinion gear bearing retainer.
11. Install the drive pinion flange/yoke. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement (Service and Repair).
Note: Do not apply sealant to the pinion gear bearing retainer at this time.
12. Install the original shim to the pinion bearing retainer. If the original shim is not available, install a 0.41 mm (0.016 in) shim to build pinion depth.
13. Install the pinion gear bearing retainer to the axle housing.
Caution: Refer to Fastener Caution (Fastener Caution).
14. Install the pinion bearing retainer bolts and tighten to 88 Nm (65 lb ft).
15. Using an inch-pound torque wrench, measure the rotational torque of the pinion it should be between 1.0-2.3 Nm (10-20 lb in) for used bearings, or 1.7-3.4 Nm (15-30 lb in) for new bearings.
16. If the rotating torque measurement is below 1.0 Nm (10 lb in) for used bearings, or 1.7 Nm (15 lb in) for new bearings, use the J 8614-01 - remover and continue to tighten the pinion nut in small increments until the rotational torque is between 1.0-2.3 Nm (10-20 lb in) for used bearings, or 1.7-3.4 Nm (15-30 lb in) for new bearings.
17. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated.
Recheck the rotating torque and adjust if necessary.
18. Install the differential assembly. Refer to Differential Replacement (10.5 Inch Axle) (Differential Replacement (10.5 Inch Axle)) Differential Replacement (8.6, 9.5/9.5 LD Inch Axles) (Differential Replacement (8.6, 9.5/9.5 LD Inch Axles)).
19. Adjust the differential side bearing preload. Refer to Differential Carrier Bearing Preload Adjustment (9.5LD Inch Axle) (Differential Carrier Bearing Preload Adjustment (9.5LD Inch Axle)) Differential Carrier Bearing Preload Adjustment (10.5 Inch Axle) (Differential Carrier Bearing Preload Adjustment (10.5 Inch Axle)) Differential Carrier Bearing Preload Adjustment (8.6 Inch Axle) (Differential Carrier Bearing Preload Adjustment (8.6 Inch Axle)).
20. Determine the selective shim thickness for the drive pinion. Refer to Pinion Depth Adjustment (9.5LD Inch Axle) (Pinion Depth Adjustment (9.5LD Inch Axle))Pinion Depth Adjustment (8.6 Inch Axle) (Pinion Depth Adjustment (8.6 Inch Axle))Pinion Depth Adjustment (10.5 Inch Axle) (Pinion Depth Adjustment (10.5 Inch Axle)).
21. Adjust the backlash. Refer to Backlash Adjustment (8.6 Inch Axle) (Backlash Adjustment (8.6 Inch Axle)) Backlash Adjustment (9.5 LD Axle) (Backlash Adjustment (9.5 LD Axle)) Backlash Adjustment (10.5 Inch Axle) (Backlash Adjustment (10.5 Inch Axle)).
22. Fill the axle with lubricant. Refer to Differential Oil Replacement (9.5LD Inch Axle) (Differential Oil Replacement (9.5LD Inch Axle)) Differential Oil Replacement (8.6 Inch Axle) (Differential Oil Replacement (8.6 Inch Axle)) Differential Oil Replacement (10.5 Inch Axle) (Differential Oil Replacement (10.5 Inch Axle)).
23. Remove the support and lower the vehicle.