Hummer H2. Manual - part 884

Fig. 119: Applying Gear Marking Compound To Ring Gear Teeth 
Courtesy of GENERAL MOTORS CORP. 

2. Use a medium stiff brush in order to sparingly apply gear marking compound, GM P/N 1052351 

(Canadian P/N 10953497) or equivalent, to all of the ring gear teeth.  

3. Torque the bearing caps bolts to specification. 

IMPORTANT: Performing a test without loading the gears will not produce a satisfactory 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

4. Apply the park brake until a torque load of 14 N.m (10 lb ft) is required in order to turn the pinion. 

5. Using a wrench, turn the drive pinion flange/yoke so that the ring gear rotates 3 full revolutions.  

6. Turn the drive pinion flange/yoke in the opposite direction so that the ring gear rotates 3 full revolutions 

in the opposite direction.  

7. Observe the pattern on the ring gear teeth. Compare the pattern with the following illustrations.  

Correct Contact Pattern 

Condition 

Fig. 120: Correct Contact Pattern 
Courtesy of GENERAL MOTORS CORP. 

The backlash and pinion depth is correct. 

Correction 

None required. 

Service Hints 

pattern.

IMPORTANT: Avoid turning the ring gear excessively.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Loose bearings on the drive pinion or in the differential case may cause patterns that vary. If the contact pattern 
varies, inspect the following preload settings: 

z

Total assembly  

z

Differential case  

z

Pinion  

If these settings are correct, inspect for damage or incorrectly assembled parts. 

Drive Side Heel - Coast Side Toe Contact Pattern 

Fig. 121: Drive Side Heel - Coast Side Toe Contact Pattern 
Courtesy of GENERAL MOTORS CORP. 

Condition 

The backlash is incorrect. The ring gear is too far away from the pinion. 

Correction 

Decrease the backlash. Move the ring gear closer to the pinion by adjusting the side bearing shim thickness or 
the adjuster sleeve(s). Refer to Backlash Adjustment . 

Drive Side Toe - Coast Side Heel Contact Pattern 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2

  

Fig. 122: Drive Side Toe - Coast Side Heel Contact Pattern 
Courtesy of GENERAL MOTORS CORP. 

Condition 

The backlash is incorrect. The ring gear is too close to the drive pinion. 

Correction 

Increase the backlash. Move the ring gear away from the pinion by adjusting the side bearing shim thickness or 
the adjuster sleeve(s). Refer to Backlash Adjustment . 

Drive Side Heel - Coast Side Heel Contact Pattern

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Rear Drive Axle - Hummer H2