Hummer H2. Manual - part 939

Fig. 123: Installing Left Side Axle Shaft Bearing Using J 36609 & J 8092 
Courtesy of GENERAL MOTORS CORP. 

27. Install the left side axle shaft bearing into the differential adjuster nut sleeve using the J 36609 (2) and the 

J 8092 (1). See Special Tools and Equipment . 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 124: Differential Case Assembly 
Courtesy of GENERAL MOTORS CORP. 

28. Install the differential case assembly into the left differential carrier case half.  

29. Install the right differential carrier case half to the left differential carrier case half. 

Do not use sealer at this time. 

If the carrier case halves do not make complete contact, use the J 36599-A in order to back out the right 
differential adjuster nut sleeve. See Special Tools and Equipment . 

30. Install the differential carrier case bolts. 

Tighten: Tighten the differential carrier case bolts to 78 N.m (58 lb ft).

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

31. Install the differential carrier assembly into a vise. 

Fig. 125: Turning Left Side Differential Adjuster Nut Sleeve Using J 36615 
Courtesy of GENERAL MOTORS CORP. 

32. Turn the left side differential adjuster nut sleeve in using the J 36615 until the differential adjuster nut 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

contacts the differential side bearing and can no longer be turned. See Special Tools and Equipment . 

33. Turn the right side differential adjuster nut sleeve in using theJ 36599-A until the differential adjuster nut 

contacts the differential side bearing and can no longer be turned. See Special Tools and Equipment .  

34. Rotate the pinion several times in order to seat the bearings.  

35. Measure the rotating torque of the pinion and differential assembly using an inch-pound torque wrench. 

Specification: The rotating torque of the pinion and differential assembly should be 2.8-5.1 N.m (25-45 
lb in) for used bearings, or 3.4-6.2 N.m (30-55 lb in) for new bearings. 

36. If the rotating torque measurement is below 2.8 N.m (25 lb in) for used bearings, or 3.4 N.m (30 lb in) for 

new bearings, tighten the differential adjuster nut sleeves one notch at a time on each side until the 
rotating torque of the pinion and differential assembly is within specifications.  

37. If the rotating torque measurement is above 5.1 N.m (45 lb in) for used bearings, or 6.2 N.m (55 lb in) for 

new bearings, loosen the differential adjuster nut sleeves one notch at a time on each side until the 
rotating torque of the pinion and differential assembly is within specifications.  

38. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated. 

Recheck the rotating torque and adjust if necessary. 

39. Measure the drive pinion to ring gear backlash. Refer to Backlash Inspection and Adjustment .  

BACKLASH INSPECTION AND ADJUSTMENT 

Tools Required 

z

J 8001 Dial Indicator Set. See Special Tools and Equipment .  

z

J 36599-A Side Bearing Nut Wrench. See Special Tools and Equipment .  

z

J 36615 Side Bearing Nut Wrench. See Special Tools and Equipment .  

1. Mark the location of the differential adjuster nut sleeves in relation to the differential carrier halves. 

Ensure that the notches can be counted when turned.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2