Hummer H3. Manual — part 992

Fig. 37: Installing Axle Shaft Bearing Using J 23690 & J 8092
Courtesy of GENERAL MOTORS CORP.

1. Install the axle shaft bearing using the J 23690 (1) and the J 8092 (2).

2. Drive the axle shaft bearing into the axle housing until the tool bottoms against the tube.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 38: Installing Axle Shaft Seal Using J 21128
Courtesy of GENERAL MOTORS CORP.

3. Install the axle shaft seal using the J 21128 .

4. Drive the tool into the bore until the axle shaft seal bottoms flush with the tube.

5. Install the axle shaft. Refer to Rear Axle Shaft Replacement.

6. Install the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket

Replacement.

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

8. Fill the rear axle. Refer to Rear Axle Lubricant Replacement.

9. Lower the vehicle.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

DRIVE PINION FLANGE/YOKE AND/OR OIL SEAL REPLACEMENT

Tools Required

J 8614-01 Flange and Pulley Holding Tool

J 33782 Pinion Oil Seal Installer. See Special Tools.

J 38694 Extension Housing Oil Pump/Seal Installer. See Special Tools.

Removal Procedure

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

2. Drain the drive axle. Refer to Rear Axle Lubricant Replacement.

3. Remove the rear brake rotors. Refer to Rear Brake Rotor Replacement .

IMPORTANT: Observe and mark the positions of all the driveline

components, relative to the propeller shaft and the axles,
prior to disassembly. These components include the
propeller shafts, drive axles, pinion flanges, output shafts,
etc. Reassemble all the components in the exact places in
which you removed the parts. Follow any specifications,
torque values and any measurements made prior to
disassembly.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 39: Measuring Pinion Rotating Torque
Courtesy of GENERAL MOTORS CORP.

4. Measure the amount of torque required to rotate the pinion. Use an inch-pound torque

wrench. Record this measurement for reassembly. This will give the combined preload for
the following components:

The pinion bearings

The differential case bearings

The axle bearings

The axle seals

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3