Hummer H2. Manual - part 919

Fig. 55: Installing Oil Seal Using J 36366 
Courtesy of GENERAL MOTORS CORP. 

1. Install the oil seal by doing the following: 

1. Position the oil seal in the bore.  

2. Install the J 36366 over the oil seal.  

3. Strike the J 36366 with a hammer until the seal flange seats on the axle housing surface.  

2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of the drive 

pinion yoke.  

3. Install the pinion yoke. 

Align the reference marks made during removal. 

4. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few pinion shaft 

IMPORTANT: Drive the seal in straight, not at an angle.

NOTE:

Do not hammer the pinion flange/yoke onto the pinion shaft. Pinion 
components may be damaged if the pinion flange/yoke is hammered onto 
the pinion shaft.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

threads show through the yoke.  

5. Install the washer and a new pinion nut. 

Fig. 56: Installing J 8614-01 Onto Pinion Yoke 
Courtesy of GENERAL MOTORS CORP. 

6. Install the J 8614-01 onto the pinion yoke as shown. See Special Tools and Equipment . 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: If the rotating torque is exceeded, the pinion will have to be removed and 

a new collapsible spacer installed.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

7. Tighten the pinion nut while holding the J 8614-01 . See Special Tools and Equipment . 

Tighten: Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while 
tightening the nut to seat the bearings. 

8. Measure the rotating torque of the pinion using an inch-pound torque wrench. 

Compare the measurement with the rotating torque recorded earlier. 

Tighten: Tighten the pinion nut, in small increments, as needed, until the torque required in order to 
rotate the pinion is 0.40-0.57 N.m (3-5 lb in) greater than the torque recorded during removal. 

9. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated. 

Recheck the rotating torque and adjust if necessary. 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

  

Fig. 57: Propeller Shaft & Front Axle Pinion Yoke
Courtesy of GENERAL MOTORS CORP. 

10. Install the propeller shaft (5) to the pinion yoke (1). 

Align the reference marks made during removal. 

11. Install the yoke retainers (7) and the yoke retainer bolts (6) to the pinion yoke (1). 

Tighten: Tighten the yoke retainer bolts to 25 N.m (18 lb ft). 

12. Inspect the axle lubricant level, and add, if necessary. Refer to Lubricant Level Inspection - Front 

Drive Axle .  

13. Install the engine protection shield. Refer to Engine Protection Shield Replacement in Frame and 

Underbody.  

14. Install the brake calipers. Refer to Brake Caliper Replacement - Front in Disc Brakes.  

15. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and 

Wheels.  

16. Lower the vehicle.  

DIFFERENTIAL CARRIER ASSEMBLY BUSHING REPLACEMENT (DIFFERENTIAL CARRIER) 

Tools Required 

J 45755 Front Axle Bushing Remover/Installer. See Special Tools and Equipment . 

Removal Procedure 

1. Remove the differential carrier assembly. It is not necessary to drain the differential carrier assembly. 

Seal the vent tube opening with a piece of tape to prevent the axle lubricant from leaking from the 
differential carrier assembly. Refer to Differential Carrier Assembly Replacement . 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2