Hummer H3. Manual — part 964

Fig. 81: View Of J 8001-1, J 8001-2, J 34178 & J 8001-3
Courtesy of GENERAL MOTORS CORP.

3. Install the J 8001-1 (2), the J 8001-2 (3) the J 34178 (4, 6) and the J 8001-3 (5) as shown.

See Special Tools.

4. Preload the J 8001-3 (5) approximately 3/4 of a turn clockwise.

5. Rotate the indicator housing to align the indicator needle of the J 8001-3 (5) and the dial

indicator face to ZERO.

6. Spread the axle housing by turning the clevis screw of the J 34178 while observing the J

8001-3 . Spread the housing just enough to remove the differential assembly. DO NOT
spread the housing more than 1.02 mm (0.040 in). See Special Tools.

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3

Fig. 82: View Of Bearing Cap Bolts
Courtesy of GENERAL MOTORS CORP.

7. Place the case with the bearing cups installed into the axle housing.

8. Install the bearing caps and bolts. Do not torque the bearing cap bolts at this time.

9. Adjust the differential side bearing preload. Refer to Drive Pinion and Ring Gear

Replacement.

10. Adjust the backlash. Refer to Backlash Inspection and Adjustment.

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3

11. Perform the gear tooth contact pattern check. Refer to Gear Tooth Contact Pattern

Inspection.

12. Tighten the bearing cap bolts.

Tighten: Tighten the bearing cap bolts to 63 N.m (46 lb ft).

13. Install the front axle housing cover gasket.

14. Install the front axle housing cover and bolts.

Tighten: Tighten the bolts to 30 N.m (22 lb ft).

15. Install the front axle shaft housing tube assembly to the front drive axle housing.

16. Install the bolts retaining the front axle shaft housing tube assembly to the front drive axle

housing.

Tighten: Tighten the front axle shaft tube to axle bolts to 60 N.m (44 lb ft).

17. Remove the J-45935 from the front drive axle housing. See Special Tools.

18. Install the differential carrier assembly to the vehicle. Refer to Differential Carrier

Assembly Replacement.

DIFFERENTIAL CASE ASSEMBLY DISASSEMBLE

Tools Required

J 22888-D Side Bearing Remover Kit. See Special Tools.

Disassembly Procedure

1. Place the differential case in a vise.

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3

Fig. 83: Removing Differential Side Bearing
Courtesy of GENERAL MOTORS CORP.

2. Install the J 22888-20A (2) and the J 8107-2 (1) as shown.

3. Remove the differential side bearings using the J 22888-20A and the J 8107-2 .

2007 Hummer H3

2007 Driveline/Axle Front Drive Axle - H3