Hummer H3. Manual — part 995

Fig. 48: View Of Rear Brake Drum
Courtesy of GENERAL MOTORS CORP.

12. Install the brake rotors. Refer to Rear Brake Rotor Replacement .

13. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Rear Axle

Lubricant Replacement.

14. Fill the drive axle. Refer to Rear Axle Lubricant Replacement.

15. Lower the vehicle.

DRIVE PINION AND RING GEAR REPLACEMENT

Tools Required

J 22536 Pinion Driver, 8.6 inch

Removal Procedure

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Remove the differential assembly. Refer to Differential Replacement.

3. Remove the pinion yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil

Seal Replacement.

Fig. 49: Installing J 22536 Or J 44421 On Pinion
Courtesy of GENERAL MOTORS CORP.

4. Install the J 22536 as shown.

Ensure that the J 22536 is firmly seated on the pinion.

5. Drive the pinion out using the J 22536 and a hammer.

Strike the J 22536 slowly. Do not let the pinion fall out of the rear axle housing.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 50: View Of Collapsible Spacer & Pinion
Courtesy of GENERAL MOTORS CORP.

6. Remove the collapsible spacer from the pinion. Discard the spacer.

7. Remove the pinion bearings and the cups. Refer to Drive Pinion Bearings Replacement.

8. Remove the gear bolts. Discard the bolts.

9. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.

Installation Procedure

IMPORTANT: The ring gear bolts have left-hand threads.

NOTE:

Refer to Ring Gear Removal Notice .

IMPORTANT: The mating surface of the ring gear and the differential case

must be clean and free of burrs before installing the ring
gear.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 51: Installing Ring Gear Onto Differential Case
Courtesy of GENERAL MOTORS CORP.

1. Install the ring gear to the differential case.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3