Hummer H2. Manual - part 980

Fig. 113: Installing Inner Pinion Bearing 
Courtesy of GENERAL MOTORS CORP. 

3. Install the inner pinion bearing onto the pinion gear using the J 36614 . See Special Tools and 

Equipment .  

4. Install the new collapsible spacer onto the pinion gear.  

5. Lubricate the pinion bearings with axle lubricant, GM P/N 12378261 (Canadian P/N 10953455) or 

equivalent meeting GM Specification 9986115. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 114: Installing Outer Pinion Bearing Into Left Differential Carrier Case Half 
Courtesy of GENERAL MOTORS CORP. 

6. Install the outer pinion bearing into the left differential carrier case half. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 115: Installing Oil Seal Using J 36366 
Courtesy of GENERAL MOTORS CORP. 

7. Install the pinion oil seal using J 36366 . See Special Tools and Equipment . 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 116: Applying GM P/N 12346004 Sealant To Splines Of Pinion Yoke 
Courtesy of GENERAL MOTORS CORP. 

8. Install the pinion gear, with the inner pinion bearing and the new collapsible spacer, into the left 

differential carrier case half.  

9. Apply sealant, GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the splines of the pinion 

yoke. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2