Chevrolet Silverado / GMC Sierra. Service manual — part 2843

FRONT OUTPUT SHAFT SEAL REPLACEMENT

2

1. Fill the transfer case to the bottom of the fill plug hole with DEXRON®

VI GM P/N 88861003 (Canadian P/N 88861004).

2. Apply sealant GM P/N 12346004, (Canadian P/N 10953480), or

equivalent, to the plug threads.

Tip: When performing the following procedure, use only hand tools to remove
and install the fill plug.

Tighten: 18 N.m (13 lb ft)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

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