Hummer H3. Manual — part 956

3. Remove the drive pinion yoke and the oil seal. Refer to Front Differential Drive Pinion

Flange/Yoke, Seal and Dust Deflector Replacement.

Fig. 55: Installing J 22536 Or J 44421 On Pinion
Courtesy of GENERAL MOTORS CORP.

4. Install the J 22536 as shown. See Special Tools.

Ensure that the J 22536 is firmly seated on the pinion. See Special Tools.

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

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

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3

Fig. 56: 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 ring gear. Refer to Differential Case Assembly Disassemble.

Installation Procedure

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3

Fig. 57: Installing Ring Gear Onto Differential Case
Courtesy of GENERAL MOTORS CORP.

1. Install the ring gear to the differential case. Refer to Differential Case Assembly

Disassemble.

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 Front Drive Axle - H3

2. Install the new ring gear bolts.

Hand start each bolt to ensure that the ring gear is properly installed to the differential case.

3. Tighten the new ring gear bolts alternately and in stages, gradually pulling the ring gear onto

the differential case.

Tighten: Tighten the ring gear bolts in sequence to 120 N.m (89 lb ft).

4. Install the drive pinion bearing cups. Refer to Drive Pinion Bearings Replacement.

5. Determine the selective shim thickness for the pinion gear. See Differential Side Bearing

Preload Adjustment Procedure.

6. Install the selective shim onto the pinion.

7. Install the inner pinion bearing onto the pinion. Refer to Drive Pinion Bearings

Replacement.

Fig. 58: View Of Collapsible Spacer & Pinion
Courtesy of GENERAL MOTORS CORP.

8. Install a new collapsible spacer.

9. Lubricate the pinion bearings with axle lubricant. Refer to Fluid and Lubricant

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3