Hummer H3. Manual — part 994

Fig. 44: View Of Pinion Shaft & Pinion Yoke Alignment Marks
Courtesy of GENERAL MOTORS CORP.

3. Align the reference marks.

4. Install the pinion yoke.

5. Using a soft-faced hammer, tap the pinion yoke until the threads on the pinion shaft can be

seen.

6. Install the washer and a new pinion nut.

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.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 45: Holding Pinion Yoke With Special Tool
Courtesy of GENERAL MOTORS CORP.

7. Install the J 8614-01 onto the pinion yoke as shown.

8. Tighten the pinion nut while holding the J 8614-01 .

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

NOTE:

Refer to Fastener Notice .

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

removed and a new collapsible spacer installed.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 46: Measuring Pinion Rotating Torque
Courtesy of GENERAL MOTORS CORP.

9. Measure the rotating torque of the pinion. Compare this measurement with the rotating

torque recorded during removal.

Tighten: Tighten the nut in small increments, as needed, until the rotating torque is 0.40-
0.57 N.m (3-5 lb in) greater than the rotating torque recorded during removal.

10. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings

have seated. Recheck the rotating torque and adjust if necessary.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 47: View Of Propeller Shaft
Courtesy of GENERAL MOTORS CORP.

11. Install the propeller shaft. Refer to Rear Propeller Shaft Replacement .

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3