Hummer H2. Manual - part 997

Fig. 24: Assembling Trunnion Into Yoke 
Courtesy of GENERAL MOTORS CORP. 

2. Assemble 1 bearing cup part way into 1 side of the yoke. Turn the yoke ear toward the bottom.  

3. Assemble the cross into the yoke so that the trunnion seats freely into the bearing cup. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

  

Fig. 25: Assembling Bearing Cup Into Yoke Ear 
Courtesy of GENERAL MOTORS CORP. 

4. With the trunnion seated in the bearing cup, press the bearing cup into the yoke until the bearing cup is 

flush with the yoke ear.  

5. Install the opposite bearing cup part way into the yoke ear.  

6. Ensure that the trunnions start straight and true into both bearing cups.  

7. Press the opposite bearing cup into the yoke ear while working the cross all the time in order to inspect 

for free unbinding movement of the trunnions in the bearing cups. 

8. Press the bearing cup into the yoke until the bearing cup retainer groove is visible over the top of the 

bearing cup. 

IMPORTANT: If there seems to be a hang up or binding, stop pressing. Inspect the 

needle bearings for misalignment in the bearing cup.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

  

Fig. 26: Assembling Bearing Retainer Into Retainer Groove 
Courtesy of GENERAL MOTORS CORP. 

9. Assemble the bearing retainer in the retainer groove.  

10. Continue pressing until both retainers can be snapped into place. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

  

Fig. 27: Springing Yoke Using Hammer 
Courtesy of GENERAL MOTORS CORP. 

11. If the retainer is difficult to seat, the yoke can be sprung slightly with a firm blow from a dead blow 

hammer.  

12. It may be necessary to lubricate the snap ring with a slight amount of chassis grease so that the snap ring 

seats in the bearing cup groove.  

DESCRIPTION AND OPERATION 

PROPELLER SHAFT DESCRIPTION AND OPERATION 

The propeller shaft is a tube with universal joints at both ends that do not require periodic maintenance. The 
universal joints transmit power from the transfer case, or from the transmission output shaft, to the differential. 

Front Propeller Shaft Description 

The front propeller shaft transmits rotating force from the transfer case to the front differential when the transfer 
case is engaged. The front propeller shaft connects to the transfer case using a splined slip joint.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2