Hummer H2. Manual — part 953

Fig. 21: Single Edge Pitting
Courtesy of GENERAL MOTORS CORP.

Flaking of surface metal results from fatigue, usually at one edge of race and rollers. Replace the bearing. Clean
all related parts. Replace the shaft if damaged.

Double Edge Pitting

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 22: Double Edge Pitting
Courtesy of GENERAL MOTORS CORP.

Flaking of surface metal results from fatigue, usually at both edges of the race and rollers. Replace the bearing.
Clean all related parts. Replace the shaft if damaged.

Misalignment

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 23: Misalignment
Courtesy of GENERAL MOTORS CORP.

Outer misalignment due to a foreign object. Replace the bearing. Ensure races are properly seated. Replace the
shaft if the bearing operating surface is damaged.

Frettage

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 24: Frettage
Courtesy of GENERAL MOTORS CORP.

Corrosion set up by a small relative movement of parts with no lubrication. Replace the bearing. Clean all the
relative parts. Check the seals. Check for proper fit and lubrication. Replace the shaft if damaged.

Smears

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2