Chevrolet Silverado / GMC Sierra. Service manual — part 2934

Fig. 15: Front Output Shaft Seal Replacement
Courtesy of GENERAL MOTORS CORP.

REAR OUTPUT SHAFT SEAL REPLACEMENT

Fig. 16: Rear Output Shaft Seal Replacement

Callout

Component Name

Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Remove the transfer case shield, if equipped. Refer to Transfer Case Shield

Replacement .

3. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .

1

Transfer Case Output Shaft Seal

Procedure:

1. Remove the seal using a flat-bladed tool.

2. Install the seal using J 8092 and J 43484 .

Special Tools

J 8092 Driver Handle

J 43484 Front Output Shaft Seal Installer

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Courtesy of GENERAL MOTORS CORP.

TRANSFER CASE REAR EXTENSION BUSHING REPLACEMENT

Callout

Component Name

Preliminary Procedure:
Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or
Two-Piece Propeller Shaft Replacement .

1

Transfer Case Output Shaft Seal

Procedure

1. Remove the seal using a flat-bladed tool.

2. Install the seal with the notch at the top and the weep hole at the bottom.

Tip: Use the appropriate seal installer depending on application.

Special Tools

DT-48021 Seal Installer (Heavy Duty)

DT-48210 Seal Installer (Light Duty)

J 8092 Drive Handle

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 17: Transfer Case Rear Extension Bushing Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures:
Remove the transfer case rear output shaft seal. Refer to Rear Output Shaft Seal
Replacement

NOTE:

Refer to Transfer Case Seal Removal Notice .

Transfer Case Rear Output Shaft Bushing

Procedure

1. Install the finger section of the DT-48734 (Heavy Duty) or J 45380 (Light

Duty) in front of the bushing.

2. Install the forcing tube assembly into the finger section. Ensure the forcing

screw is backed out.

3. Using a wrench on the forcing screw, remove the bushing.

4. Remove the old bushing from the DT-48734 (Heavy Duty) or J 45380

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

TRANSFER CASE ASSEMBLY REPLACEMENT

1

(Light Duty).

5. Install the NEW bushing on the finger section of the DT-48734 (Heavy

Duty) or J 45380 (Light Duty).

6. Install the finger section to the forcing tube assembly of the DT-48734

(Heavy Duty) or J 45380 (Light Duty).

7. Position the bushing and tool to the rear case half.

8. Install the bushing until the tool bottoms on the rear case half.

Tip:

Use the appropiate bushing tool depending on application.

Only remove the bushing if faulty.

If the bushing was removed, a new bushing must be installed.

Ensure the bushing is installed squarely into the bushing bore.

Special Tools

DT-48734 Transfer Case Rear Bushing Remover and Installer (Heavy
Duty)

J 45380 Transfer Case Rear Bushing Remover and Installer (Light Duty)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado