Hummer H2. Manual — part 896
Fig. 23: Differential Pinion Gears & Thrust Washers
Courtesy of GENERAL MOTORS CORP.
4. Install the differential pinion gears and the thrust washers by doing the following:
1. Position both pinion gears and each thrust washer into each side of the differential window.
Place the pinion gears 180 degrees across from each other.
2. Rotate the differential side gears until both pinion gears are directly opposite the opening in the
differential case.
Line up the pinion shaft opening in each of the pinion gears with the pinion shaft opening in the
differential case.
2004 Hummer H2
2004 DRIVELINE/AXLE Drive Axle - Locking/Limited Slip - Hummer H2
Fig. 24: Pinion Gear Shaft
Courtesy of GENERAL MOTORS CORP.
5. Install the pinion shaft.
6. If the pinion shaft cannot be installed, remove the pinion gears and thrust washers, the locking differential
side gear and differential thrust washer.
7. Install a smaller differential side thrust washer and re-install the locking differential side gear, the pinion
gears and thrust washers and the pinion shaft.
2004 Hummer H2
2004 DRIVELINE/AXLE Drive Axle - Locking/Limited Slip - Hummer H2
Fig. 25: Pinion Shaft Lock Bolt
Courtesy of GENERAL MOTORS CORP.
8. Install the pinion shaft lock bolt.
Do not torque the pinion shaft lock bolt at this time.
2004 Hummer H2
2004 DRIVELINE/AXLE Drive Axle - Locking/Limited Slip - Hummer H2
Fig. 26: Measuring Backlash Of Pinion Gear Closest To Pinion Shaft Lock Bolt & Locking
Differential Side Gear
Courtesy of GENERAL MOTORS CORP.
9. Measure the backlash of the pinion gear closest to the pinion shaft lock bolt and the locking differential
side gear by doing the following:
1. Rotate the pinion gear so that one of the teeth is perpendicular to the ring gear flange.
2. Install a brass drift between the locking differential side gear and the pinion shaft in order to
prevent the side gear from moving.
3. Install the J 7872 (1) to the ring gear flange. See Special Tools and Equipment .
4. Loosely clamp the J 7872-2 (2) and the J 8001-3 (3) onto the stem on the J 7872 (1). See Special
Tools and Equipment .
5. Install the J 7872-3 (4) to the J 8001-3 (3).
6. Place the contact pad of the J 7872-3 (4) onto one of the teeth of the pinion gear closest to the
2004 Hummer H2
2004 DRIVELINE/AXLE Drive Axle - Locking/Limited Slip - Hummer H2
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