Hummer H3. Manual — part 998

Fig. 58: Installing Inner Pinion Bearing Cup
Courtesy of GENERAL MOTORS CORP.

2. Install the inner pinion bearing cup using the J 45900 , 8.6 inch axle (2) and the J 8092 (1).

3. Determine the selective shim thickness for the pinion. Refer to Pinion Depth Adjustment .

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 59: Installing Inner Pinion Bearing
Courtesy of GENERAL MOTORS CORP.

4. Install the selective shim between the inner pinion bearing and the shoulder on the gear.

5. Install the inner pinion bearing using the J 24433 , 8. See Special Tools.6 inch axle.

Press the bearing on until the cone seats on the pinion shim.

6. Install a new collapsible spacer.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

7. Lubricate the pinion bearings with axle lubricant. Use the proper fluid. Refer to Fluid and

Lubricant Recommendations .

8. Install the outer pinion bearing into the axle housing.

Fig. 60: Installing New Pinion Oil Seal
Courtesy of GENERAL MOTORS CORP.

9. Install a new pinion oil seal using the J 22388 , 8.6 inch.

10. Install the pinion into the axle housing.

11. Apply sealant, GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of

the pinion yoke.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 61: View Of Pinion Shaft & Pinion Yoke Alignment Marks
Courtesy of GENERAL MOTORS CORP.

12. Install the pinion yoke.

Align the marks made during removal.

13. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few

pinion shaft threads show through the yoke.

14. Install the washer and a new pinion nut.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3