Chevrolet Silverado / GMC Sierra. Manual — part 2843
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 12: Front Output Shaft Seal
Courtesy of GENERAL MOTORS CORP.
REAR OUTPUT SHAFT SEAL REPLACEMENT
Fig. 13: Rear Output Shaft Seal
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 Drive Handle
J 43484 Front Output Shaft Seal Installer
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - 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). See Special Tools.
J 8092 Drive Handle
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 14: Transfer Case Rear Extension Bushing
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. See Special Tools.
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 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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