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