Hummer H2. Manual - part 871

Fig. 80: Left Side Differential Bearing Bolts 
Courtesy of GENERAL MOTORS CORP. 

13. Remove the left side differential bearing bolts.  

14. Remove the left side differential bearing cap. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 81: Locking Differential Coil Assembly Wiring From Axle Housing 
Courtesy of GENERAL MOTORS CORP. 

15. Remove the locking differential coil assembly wiring from the axle housing. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 82: Identifying Bearing Cap Bolt 
Courtesy of GENERAL MOTORS CORP. 

16. Remove the right side differential bearing cap bolts.  

17. Remove the right side differential bearing cap.  

18. Loosen the differential bearing adjuster nut using the J 24429 . See Special Tools and Equipment . 

CAUTION: To prevent personal injury and/or component damage, support the 

differential case when removing the case from the axle housing. If 
the case is not supported, the differential case could fall and cause 
personal injury or damage to the differential case.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 83: Differential Case & Axle Housing 
Courtesy of GENERAL MOTORS CORP. 

19. Remove the differential assembly.  

20. Remove the shim and the differential side bearing cups. 

Mark the differential side bearing cups left and right. Place the differential side bearing cups with the 
differential bearing caps. 

21. Remove the differential side bearings, if necessary. Refer to Differential Side Bearings Replacement .  

22. Remove the ring gear, if necessary. Refer to Drive Pinion and Ring Gear Replacement .  

Installation Procedure 

1. Install the ring gear, if necessary. Refer to Drive Pinion and Ring Gear Replacement .  

2. Install the differential side bearings, if necessary. Refer to Differential Side Bearings Replacement .  

3. Lubricate the differential side bearings with axle lubricant. Use the proper fluid. Refer to Fluid and 

Lubricant Recommendations in Maintenance and Lubrication. 

NOTE:

When removing the differential case from the axle housing, do not damage 
the cover gasket surface. If the cover gasket surface is damaged, lubricant 
may leak from the axle and cause premature failure of the axle assembly.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2