Hummer H2. Manual — part 996

Fig. 21: Springing Yoke Using Hammer
Courtesy of GENERAL MOTORS CORP.

12. If seating the retainer is difficult, spring the yoke slightly with a firm blow from a dead blow hammer.

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

in the bearing cup groove.

UNIVERSAL JOINT REPLACEMENT - EXTERNAL SNAP RING

Tools Required

z

J 9522-3 U-Joint Bearing Separator. See Special Tools and Equipment .

z

J 9522-5 U-Joint Bearing Spacer Remover. See Special Tools and Equipment .

Disassembly Procedure

NOTE:

Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the
tube causing an imbalance or unsafe condition. Always clamp on one of the
yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing

2004 Hummer H2

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

1. Support the propeller shaft in a line horizontal with the table of a press.

2. Mark the propeller shaft in order to show which end connects to the transmission and which end goes to

the rear axle.

3. Disassemble the snap rings by pinching the ends together with a pair of pliers.

4. If the ring does not readily snap out of the groove in the yoke, tap the end of the cup lightly in order to

relieve the pressure from the ring.

surface. Nicks may damage the bushing or cut the lip seal.

2004 Hummer H2

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

Fig. 22: Placing Universal Joint In J 9522-3
Courtesy of GENERAL MOTORS CORP.

5. Place the universal joint so that the lower ear of the yoke is supported on a 30 mm (1-1/8 in) hex head

socket or a 27 mm (1-1/16 in) socket.

Fig. 23: Placing J 9522-5 On The Open Horizontal Bearing Cups
Courtesy of GENERAL MOTORS CORP.

6. Place J 9522-3 on the open horizontal bearing cups. Press the lower bearing cup out of the yoke ear. See

Special Tools and Equipment .

7. If you do not completely remove the bearing cup, lift the cross and insert J 9522-5 between the seal and

the bearing cup you are removing. See Special Tools and Equipment . Continue pressing the bearing

2004 Hummer H2

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2

cup out of the yoke.

8. Rotate the propeller shaft. Press the opposite bearing cup out of the yoke.

9. Mark the orientation of the slip yoke to the tube for proper reassembly.

10. Remove the cross from the yoke.

11. Remove the remaining universal joint parts from the yoke.

12. If you are replacing the front universal joint, remove the bearing cups in the slip yoke in the same

manner.

13. Inspect the retaining ring grooves for dirt, corrosion, or pieces of the old ring.

14. Inspect the bearing cup bores for burrs or imperfections.

15. Clean the retaining ring grooves. Corrosion, dirt, rust, or pieces of the old retaining ring may prevent the

bearing cups from pressing into place or prevent the bearing retainers from properly seating.

Assembly Procedure

1. Remove the bearing cups from the universal joint.

2004 Hummer H2

2004 DRIVELINE/AXLE Propeller Shaft - Hummer H2