Hummer H2. Manual - part 2181

Fig. 29: Adjustment Bolt & Adjuster Nut 
Courtesy of GENERAL MOTORS CORP. 

7. Install the adjustment bolt and the adjuster nut.  

8. Remove the J 36202 releasing the tension on the torsion bar until the load is taken up by the adjustment 

bolt. See Special Tools and Equipment .  

9. Lower the vehicle.  

10. Measure the Z height. Refer to Trim Height Inspection Procedure in Suspension General Diagnosis. 

IMPORTANT: Install the adjustment bolt the same amount of turns that were required to 

remove the bolt during removal.

 

2004 Hummer H2 

2004 SUSPENSION Front Suspension - Hummer H2

  

Fig. 30: Turning Adjustment Bolt Clockwise Or Counterclockwise 
Courtesy of GENERAL MOTORS CORP. 

11. Turn the adjustment bolt clockwise to increase the Z height and counterclockwise to decrease the Z 

height.  

SHOCK ABSORBER REPLACEMENT 

Removal Procedure 

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

NOTE:

The front shock absorbers of the vehicle are multifunctional. In addition to 
contributing to a smooth ride they also provide the only stop to the front 
suspension when fully extended. Therefore, when servicing the shock absorber, 
service replacement shock absorbers must be equivalent to original shock 
absorbers in both extended length and strength. Use of shocks not complying 
to original equipment or strength could result in suspension over-travel or 
shock breakage. Suspension over-travel may result in suspension component 
breakage.

 

2004 Hummer H2 

2004 SUSPENSION Front Suspension - Hummer H2

  

Fig. 31: Shock Absorber & Tennon End 
Courtesy of GENERAL MOTORS CORP. 

2. Hold the tennon end with a wrench while removing the nut.  

3. Remove the nut. 

 

2004 Hummer H2 

2004 SUSPENSION Front Suspension - Hummer H2

  

Fig. 32: Identifying Upper Insulator 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the upper insulator (1). Do not discard the plastic pilot ring (2). 

 

2004 Hummer H2 

2004 SUSPENSION Front Suspension - Hummer H2