Hummer H2. Manual — part 2669

Installation Procedure

Fig. 31: Using J 42738 To Install Input Shaft Seal In Transfer Case
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: When installing the input shaft seal, make sure that the part numbers on

2004 Hummer H2

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

1. Position the seal on the input shaft.

2. Using the J 42738 , install the input shaft seal in the transfer case. See Special Tools and Equipment .

3. Install the transfer case to the adapter. Refer to Transfer Case Assembly Replacement .

4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

TRANSFER CASE ADAPTER REPLACEMENT

Removal Procedure

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

2. Support the transmission with a suitable jack stand.

Fig. 32: Rear Crossmember
Courtesy of GENERAL MOTORS CORP.

the seal are facing outward (toward the technician). The input shaft seal
should be even with the surface of the transfer case after installation.

2004 Hummer H2

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

3. Remove the rear crossmember from the frame.

4. Remove the transfer case from the vehicle. Refer to Transfer Case Assembly Replacement .

Fig. 33: Transfer Case & Adapter
Courtesy of GENERAL MOTORS CORP.

5. Remove the mounting bolts from the adapter to the transmission.

6. Remove the adapter from the transmission (automatic shown).

7. Remove the seal between the transfer case and the adapter.

8. Remove the gasket from the adapter.

Installation Procedure

2004 Hummer H2

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

Fig. 34: Transfer Case & Adapter
Courtesy of GENERAL MOTORS CORP.

1. Install the new seal onto the transfer case.

2. Install the adapter to the transmission.

IMPORTANT: Always use a new gasket and seal for the adapter. Do not use any type of

sealant or adhesive in place of or with the gasket or the seal.

IMPORTANT: The transfer case adapter must be installed so that the adapter is evenly

seated to the transmission before installing the retaining nuts.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

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