Hummer H2. Manual - part 949

Fig. 5: Etching 
Courtesy of GENERAL MOTORS CORP. 

Bearing surfaces appear gray or grayish black in color, with related etching away of material usually at roller 
spacing. Replace the bearings. Check the seals. Check for proper lubrication. 

Bent Cage 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 6: Bent Cage 
Courtesy of GENERAL MOTORS CORP. 

A damaged cage due to improper handling or improper tool usage. Replace the bearing. 

Cage Wear 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 7: Cage Wear 
Courtesy of GENERAL MOTORS CORP. 

Wear around the outside diameter of the cage and the roller pockets caused by abrasive material. Wear caused 
from inefficient lubrication. Clean the related parts and the housings. Check the seals. Replace the bearings. 

Indentations 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 8: Damaged Areas 
Courtesy of GENERAL MOTORS CORP. 

Surface depressions on the race and the rollers caused by hard particles of foreign matter. Clean all the parts and 
the housings. Check the seals. Replace rough or noisy bearings. 

Frettage 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2