Hummer H2. Manual - part 878

Fig. 107: Right-Rear Park Brake Cable, Backing Plate, Park Brake Actuator & Cable Guide 
Courtesy of GENERAL MOTORS CORP. 

11. Install the right-rear park brake cable (2) to the cable guide, the park brake actuator, and the backing 

plate.  

12. Install the park brake cable clips (1) to the track bar. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 108: Left-Rear Park Brake Cable, Backing Plate, Park Brake Actuator & Cable Guide 
Courtesy of GENERAL MOTORS CORP. 

13. Connect the left-rear park brake cable (3) to the cable guide, the park brake actuator (2), and the backing 

plate (1).  

14. Install the rear propeller shaft. Refer to Propeller Shaft Replacement - Rear in Propeller Shaft. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 109: Rear Axle Vent Hose & Vent Tube 
Courtesy of GENERAL MOTORS CORP. 

15. Connect the rear axle vent tube (1).  

16. Install the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires 

and Wheels.  

17. Inspect and add axle lubricant, if necessary. Refer to Lubricant Level Inspection - Rear Drive Axle .  

18. Remove the jack stands.  

19. Lower the vehicle. If equipped with air suspension, ensure the air springs seat properly as the vehicle is 

being lowered.  

20. Enable the park brake cable automatic adjuster. Refer to Enabling the Park Brake Cable Automatic 

Adjuster in Park Brake.  

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

21. If equipped with air suspension, start the vehicle and run for approximately 2 minutes to ensure the air 

spring leveling system is functioning properly.  

REAR AXLE HOUSING REPLACEMENT 

Removal Procedure 

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.  

2. Remove the rear axle assembly. Refer to Rear Axle Replacement .  

3. Remove the rear axle cover housing and gasket. Refer to Rear Axle Housing Cover and Gasket 

Replacement .  

4. Remove the axle shafts. Refer to Rear Axle Shaft Replacement .  

5. Remove the brake caliper brackets. Refer to Brake Caliper Bracket Replacement - Rear in Disc 

Brakes.  

6. Remove the axle shaft seals and the axle shaft bearings. Refer to Rear Axle Shaft Seal and/or Bearing 

Replacement .  

7. Remove the differential assembly. Refer to Drive Pinion and Ring Gear Replacement .  

8. Remove the drive pinion shaft yoke and the seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal 

Replacement .  

9. Remove the drive pinion. Refer to Drive Pinion and Ring Gear Replacement .  

Installation Procedure 

1. Install the new drive pinion bearing cups into the axle housing. Refer to Drive Pinion Bearings 

Replacement .  

2. Install the drive pinion. Refer to Drive Pinion and Ring Gear Replacement .  

3. Install the differential assembly. Refer to Drive Pinion and Ring Gear Replacement .  

4. Adjust the backlash. Refer to Backlash Adjustment .  

5. Adjust the differential side bearing preload. Refer to Differential Side Bearing Preload Adjustment .  

6. Perform a gear tooth contact pattern check. Refer to Gear Tooth Contact Pattern Inspection .  

7. Install the new axle shaft bearings and the axle shaft seals. Refer to Rear Axle Shaft Seal and/or 

Bearing Replacement .  

8. Install the brake caliper brackets. Refer to Brake Caliper Bracket Replacement - Rear in Disc Brakes.  

9. Install the axle shafts. Refer to Rear Axle Shaft Replacement .  

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

Replacement .  

11. Install the rear axle. Refer to Rear Axle Replacement .  

12. Lower the vehicle.  

BEARINGS INSPECTION 

Carefully and thoroughly inspect all drive unit parts before assembly. Thorough inspection of the drive parts for 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2