Input Shaft Seal Replacement

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Transfer Case, Nuts & Input Shaft Seal

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
NOTE: Do not damage the sealing surfaces of the transfer cases or the shafts when prying the seals for removal. Damaging the sealing surface may cause leakage or require replacement of the damaged component. Preliminary Procedures: Remove the transfer case. Refer to Transfer Case Assembly Replacement .
1	Transfer Case Nuts Tip: Use transfer case nuts to secure transfer case to assembly fixture J 45759 . Special Tools: J 45759 Assembly Fixture
2	Transfer Case Tip: Insert the transfer case and assembly fixture into the bench holding fixture J 3289-20 and secure with pivot pin. Special Tools: J 3289-20 Holding Fixture
3	Transfer Case Input Shaft Seal Tip: Double lip input shaft oil seals are used on applications with a WET adapter cavity. Single lip input shaft oil seals are used on applications with a DRY adapter cavity. Procedure Remove the seal using an appropriate tool. Refer to Transfer Case Disassemble Install the seal using J 42738 . Special Tools: J 42738 Seal Installer