Hummer H2. Manual - part 2683

59. Using the J 2619-01 (1) and the J 45548 (2), remove the mainshaft rear support bushing from the rear 

output shaft. See Special Tools and Equipment . 

Fig. 86: Using J 26941 & J 23907 To Remove Rear Bearing For Front Output Shaft From Rear 
Case 
Courtesy of GENERAL MOTORS CORP. 

60. Using the J 26941 (1) and the J 23907 (2), remove the rear bearing for the front output shaft from the rear 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Transfer Case - BW 4484 - Hummer H2

  

case. See Special Tools and Equipment . 

Fig. 87: Seal For Shift Detent Lever Shaft 
Courtesy of GENERAL MOTORS CORP. 

61. Remove the seal for the shift detent lever shaft by prying it out from the case.  

CLEANING AND INSPECTION 

Front Case Half 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Transfer Case - BW 4484 - Hummer H2

  

Fig. 88: Front Case Half Components 
Courtesy of GENERAL MOTORS CORP. 

1. Clean the front case half in cleaning solvent, and air dry.  

2. Remove the shavings from the case half bolt holes. 

3. Remove the sealer from the case sealing surfaces.  

4. Inspect the case for being broken or cracked.  

5. Inspect the front output shaft front bearing bore (5) for the following conditions: 

z

A spun bearing  

z

Cracks  

6. Inspect the input shaft bearing bore (4) for the following conditions: 

z

A spun bearing  

NOTE:

Refer to Machined Surface Damage Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Transfer Case - BW 4484 - Hummer H2

  

z

Cracks  

7. Replace the front case half if any of the above conditions are found.  

8. Inspect the sealing surfaces (1) for damage.  

9. Repair small scratches or nicks with a soft stone.  

10. Inspect the front case to transmission case mounting surface for damage.  

11. Inspect the case threaded bolt holes (2) for damage.  

12. Repair any damaged threads.  

13. Inspect the transmission to transfer case studs for damage.  

14. Replace any damaged studs. Refer to Transfer Case Disassemble and Transfer Case Assemble .  

15. Inspect the location pins (3) for being loose or missing.  

16. Repair or replace any damaged location pins.  

17. Inspect the front output shaft front bearing and the input shaft bearing for the following conditions: 

z

Roughness  

z

Brinelling  

z

Pitting  

18. Replace the bearings if any of the above conditions are found. Refer to Transfer Case Disassemble and 

Transfer Case Assemble .  

Rear Case Half 

 

2004 Hummer H2 

2004 DRIVELINE/AXLE Transfer Case - BW 4484 - Hummer H2