Hummer H2. Manual - part 909

Fig. 20: Indentations 
Courtesy of GENERAL MOTORS CORP. 

Surface depressions on race and rollers can be caused by hard particles of foreign material. Clean all of the 
parts, including the housing. Check the seals. Replace the bearings if rough or noisy. Replace the shaft if 
damaged. 

Single Edge Pitting 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

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