Hummer H2. Manual - part 2130

Fig. 62: Exploded View Of Valve Assembly (700 Gear) 
Courtesy of GENERAL MOTORS CORP. 

1. If disassembled, reassemble the valve assembly in the following manner: 

1. Alternately install the valve body teflon rings (5) and the O-ring seals (4).  

2. Install the valve spool O-ring seal (2) to the valve spool (1).  

3. Lubricate the valve spool (1) and O-ring seal (2) with power steering fluid.  

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

Fig. 63: Pushing & Rotating Valve Spool Into Valve Body 
Courtesy of GENERAL MOTORS CORP. 

2. Simultaneously push and rotate the valve spool (2) into the valve body (1) until the hole (3) in the valve 

spool (2) for the stub shaft pin is accessible from the opposite end of the valve body (1). 

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

Fig. 64: Installing Stub Shaft To Valve Spool 
Courtesy of GENERAL MOTORS CORP. 

3. If necessary, install the stub shaft to the valve spool in the following manner: 

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2

  

Lubricate the stub shaft assembly (3).

1. Insert the stub shaft (3) into the valve spool.  

2. Insert the pin. 

3. The notch in the cap (1) must fully engage the valve body pin (2). Seat the cap against the valve 

body shoulder.  

Fig. 65: Installing Stub Shaft & Valve Assembly To Worm Shaft 
Courtesy of GENERAL MOTORS CORP. 

4. Install the stub shaft (7) and valve assembly (6) to the worm shaft (5). Ensure the pin fits in the worm 

shaft to the slot in the valve assembly.  

5. Install the thrust support assembly. Refer to Steering Gear Thrust Support Replacement - Off Vehicle 

(700 Gear) .  

RACK PISTON AND WORM SHAFT REPLACEMENT - OFF VEHICLE (700 GEAR) 

IMPORTANT: Make sure that the shaft cap notch (1) is mated with the valve body 

pin before installing the valve body into the steering gear assembly.

 

2004 Hummer H2 

2004 STEERING Power Steering System - Hummer H2