Chevrolet Silverado / GMC Sierra. Manual — part 2813

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

Fig. 29: View Of Transfer Case Drain Plug
Courtesy of GENERAL MOTORS CORP.

4. Remove the drain plug and the fill plug. Ensure all of the transfer case fluid is drained out of

the transfer case.

2008 Chevrolet Silverado 1500

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

Silverado