Hummer H3. Manual — part 991

Fig. 34: Axle Shaft Housing & Components
Courtesy of GENERAL MOTORS CORP.

1. Install the axle shaft (1) into the rear axle housing (5).

2. Slide the axle shaft (1) into place allowing the splines to engage the differential side gear.

3. Place the lock (4) on the button end of the axle shaft (1).

4. Pull the shaft flange outward in order to seat the lock in the differential gear.

IMPORTANT: Carefully insert the axle shaft in order to not damage the

seal.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 35: View Of Pinion Shaft Locking Bolt
Courtesy of GENERAL MOTORS CORP.

5. Align the hole in the pinion shaft with the bolt hole in the differential case.

6. Install the new pinion shaft locking bolt.

Tighten: For the 8.6 inch axle, tighten the pinion shaft locking bolt to 25 N.m (187 lb ft).

7. Install the rear cover and the gasket. Refer to Rear Axle Housing Cover and Gasket

Replacement.

8. Install the brake caliper. Refer to Rear Brake Caliper Replacement .

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

9. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .

10. Fill the rear axle. Use the proper fluid. Refer to Approximate Fluid Capacities and Fluid

and Lubricant Recommendations .

11. Lower the vehicle.

REAR AXLE SHAFT SEAL AND/OR BEARING REPLACEMENT

Tools Required

J 8092 Universal Driver Handle-3/4 in - 10

J 21128 Axle Pinion Oil Seal Installer (8.6 inch)

J 23690 Axle Shaft Bearing Installer (8.6 inch)

J 2619-01 Slide Hammer

J 45857 Tone Wheel and/or Bearing Remover. See Special Tools.

Removal Procedure

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

2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and

Installation .

3. Remove the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket

Replacement.

4. Remove the axle shaft. Refer to Rear Axle Shaft Replacement.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 36: Removing The Wheel Speed Sensor Ring From The Axle Housing
Courtesy of GENERAL MOTORS CORP.

5. Remove the axle shaft seal and the bearing from the axle housing using the J 45857 (1) and

the J 2619-01 (2). See Special Tools.

6. To remove the seal only, use a suitable seal remover.

Installation Procedure

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3