Drive Pinion Bearings Replacement (10.5 Inch Axle)
Drive Pinion Bearings 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 Remover
* J 24433 - Pinion Bearing Installer
* J 37624 - Pinon Bearing Installer
* J 44414 - Pinion Oil Seal Installer
Removal Procedure
1. Raise and support 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 yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement (Drive Pinion Flange/Yoke and/or Oil Seal Replacement).
4. Remove the drive pinion housing assembly. Refer to Drive Pinion Bearings Replacement (10.5 Inch Axle) Drive Pinion Bearings Replacement (8.6 Inch Axle) (Drive Pinion Bearings Replacement (8.6 Inch Axle)).
5. Using a press and the appropriate tool, remove the drive pinion gear pinion.
6. Remove the collapsible spacer.
7. Using the J 22912-B - remover and a hydraulic press, remove the inner drive pinion bearing.
Note: Insert the brass drift in the slots to remove the bearing cup and 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.
8. Using a brass drift and a hammer, remove the outer pinion bearing cup.
Note: Insert the brass drift in the slots to remove the bearing cup and 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 brass drift and a hammer, remove the inner pinion bearing cup.
10. Using a brass drift and a hammer, remove the pinion gear pilot bearing.
Installation Procedure
Note: Ensure that the drive pinion gear pilot bearing is as square as possible in the differential housing before installation.
1. Position the drive pinion gear pilot bearing (1) in the differential housing (2).
2. Using the J 22761 - installer (1) and the J 8092 - handle (2), install the drive pinion gear pilot bearing in the differential housing (3).
3. Using the J 37624 - installer (2) and theJ 8092 - handle (1), install the inner pinion bearing cup in the pinion gear bearing retainer.
4. Using the J 8608 - Pinion Bearing Cup Installer (2) and the J 8092 - handle (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 (Specifications).
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 (Drive Pinion Flange/Yoke and/or Oil Seal Replacement)
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. Refer to Drive Pinion Housing and/or Seal Replacement (Drive Pinion Housing and/or Seal Replacement)
14. Using an inch-pound torque wrench, measure the rotating torque of the pinion 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.
15. If the rotating torque measurement is below 1.0 Nm(10 lb in) for used bearings, or1.7 Nm(15 lb in) for new bearings, use the J 8614-01 - holding tool and continue to tighten the pinion nut, in small increments, as needed, until the rotating 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.
16. 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.
17. 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)).
18. Adjust the differential side bearing preload. Refer to Differential Carrier Bearing Preload Adjustment (8.6 Inch Axle) (Differential Carrier Bearing Preload Adjustment (8.6 Inch Axle))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)).
19. Adjust the drive pinion gear pinion depth, if needed. Refer to Pinion Depth Adjustment (8.6 Inch Axle) (Pinion Depth Adjustment (8.6 Inch Axle))Pinion Depth Adjustment (9.5LD Inch Axle) (Pinion Depth Adjustment (9.5LD Inch Axle))Pinion Depth Adjustment (10.5 Inch Axle) (Pinion Depth Adjustment (10.5 Inch Axle)).
20. 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)).
21. Fill the axle with lubricant. Refer to Differential Oil Replacement (10.5 Inch Axle) (Differential Oil Replacement (10.5 Inch Axle))Differential Oil Replacement (8.6 Inch Axle) (Differential Oil Replacement (8.6 Inch Axle))Differential Oil Replacement (9.5LD Inch Axle) (Differential Oil Replacement (9.5LD Inch Axle)).
22. Remove the support and lower the vehicle.