Input Shaft Seal Replacement

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Input Shaft Seal

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: 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 J 45759: fixture. Special Tools: J 45759: Assembly Fixture
2	Transfer Case Tip: Insert the transfer case and assembly fixture into the bench J 3289-20: fixture and secure with pivot pin. Special Tools: J 3289-20: Holding Fixture
3	Transfer Case Input Shaft Seal Procedure Remove the seal using an appropriate tool. Refer to Transfer Case Disassemble . Install the seal using J 42738: installer. 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. Special Tools: J 42738: Seal Installer