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