Hummer H2. Manual — part 981

Fig. 117: Installing Pinion Yoke
Courtesy of GENERAL MOTORS CORP.

10. Install the pinion yoke.

NOTE:

Do not hammer the pinion flange/yoke onto the pinion shaft. Pinion
components may be damaged if the pinion flange/yoke is hammered onto
the pinion shaft.

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

11. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few pinion shaft

threads show through the yoke.

Fig. 118: Installing Washer
Courtesy of GENERAL MOTORS CORP.

12. Install the washer.

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 119: Installing New Pinion Nut
Courtesy of GENERAL MOTORS CORP.

13. Install the new pinion nut.

14. If the new pinion nut cannot be installed, perform the following steps in order to seat the pinion yoke onto

the pinion so that the washer and the new pinion nut can be installed:

1. Remove the pinion nut washer.

2. Install the old pinion nut.

3. Tighten the nut until a few of the shaft threads show through the nut so that the washer and the new

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

pinion nut can be installed.

4. Remove the old pinion nut.

5. Install the pinion nut washer.

6. Install the new pinion nut.

Fig. 120: Installing J 8614-01 Onto Pinion Yoke
Courtesy of GENERAL MOTORS CORP.

15. Install the J 8614-01 onto the pinion yoke as shown. See Special Tools and Equipment .

16. Tighten the pinion nut while holding the J 8614-01 . See Special Tools and Equipment .

Tighten: Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while
tightening the nut to seat the bearings.

17. Remove the J 8614-01 . See Special Tools and Equipment .

18. Measure the rotating torque of the pinion using an inch-pound torque wrench.

Specification: The rotating torque of the pinion should be 1.1-2.3 N.m (10-20 lb in) for used bearings, or
1.7-3.4 N.m (15-30 lb in) for new bearings.

19. If the rotating torque measurement is below 1.0 N.m (10 lb in) for used bearings, or 1.7 N.m (15 lb in) for

NOTE:

Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: If the rotating torque is exceeded, the pinion will have to be removed and

a new collapsible spacer installed.

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2