Chevrolet Silverado / GMC Sierra. Service manual — part 2813

Fig. 25: View Of Input Seal Removal Special Tools
Courtesy of GENERAL MOTORS CORP.

1. Remove the transfer case. Refer to Transfer Case Assembly Replacement.

2. Using the J 23907 (1), and J 36825 (2), remove the input seal.

Installation Procedure

IMPORTANT: It may be necessary to use a sharp punch in order to poke a

hole into the seal prior to inserting J 36825 .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 26: View Of Input Shaft Seal & Special Tool
Courtesy of GENERAL MOTORS CORP.

1. Using the J 42738 , install the input shaft seal. See Special Tools.

2. Install the transfer case. Refer to Transfer Case Assembly Replacement.

REPAIR INSTRUCTIONS - OFF VEHICLE

TRANSFER CASE DISASSEMBLE

Tools Required

J 2619-01 Slide Hammer

J 3289-20 Holding Fixture

J 26941 Bushing and Bearing Remover - 3-4 inch

J 45124 Puller Bridge

J-45124-9 Puller Legs. See Special Tools.

J 45358 Case Spreader. See Special Tools.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

J 45380 Transfer Case Rear Bushing Remover and Installer. See Special Tools.

J 45548 Mainshaft Support Bushing/Bearing Remover. See Special Tools.

J 45759 Assembly Fixture. See Special Tools.

Disassemble

Fig. 27: Identifying J 45759
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

1. Attach the J 45759 to the transfer case using the adapter studs. See Special Tools. All of

the transfer case disassembly procedures can be performed with the case mounted to the J
45759 . See Special Tools.

Fig. 28: View Of Front Transfer Case Bench Mount
Courtesy of GENERAL MOTORS CORP.

2. Mount the J 3289-20 (1) to a sturdy workbench.

3. Install the J 45759 (2) into J 3289-20 (1) and secure with pivot pin. See Special Tools.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado