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Chevrolet Silverado / GMC Sierra. Manual - part 2934
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
Fig. 18: Transfer Case Assembly Replacement
Courtesy of GENERAL MOTORS CORP.
TRANSFER CASE ADAPTER 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 rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement
or Two-Piece Propeller Shaft Replacement .
4. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
5. Drain the fluid from the transfer case. Refer to Transfer Case Fluid Replacement.
6. Disconnect the electrical connectors and remove the electrical harness from the
transfer case.
7. Remove the crossmember. Refer to Transmission Support Crossmember
Replacement (2WD 2500 HD/3500) or Transmission Support Crossmember
Replacement (2WD 1500/2500) or Transmission Support Crossmember
Replacement (4WD 1500/2500) or Transmission Support Crossmember
Replacement (4WD 2500 HD/3500) .
8. Remove the transmission mount. Refer to Transmission Mount Replacement
(2WD) or Transmission Mount Replacement (4WD) for the 4L60-E/4L65-
E/4L70-E Transmission, or Transmission Mount Replacement (2WD) or
Transmission Mount Replacement (4WD) for the 6L50/6L80/6L90 transmission.
1
Transfer Case Nut
Tighten: 50 N.m (37 lb ft)
NOTE:
Refer to Fastener Notice .
2
Transfer Case
3
Transfer Case Gasket
Tip: Install a NEW gasket without the use of any type of sealant or lubricant.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
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