Input Shaft Seal and Front Output Shaft Seal Installation

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 & Front Output Shaft Seal

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case Input Shaft Seal Tip: Ensure the bore of the front case half is free of dirt, oil, and cleaning solvent. Double lip input shaft oil seals are used on applications with a WET adapter cavity and with 4 speed transmission RPOs M30/M70/MW7/M99/ML9 only. Single lip input shaft oil seals are used on applications with a DRY adapter cavity and with 6 speed transmission RPOs MYC/MYD only. Special Tools: J 42738: Seal Installer
2	Transfer Case Front Output Shaft Seal Special Tools J 8092: Universal Driver J 43484: Front Output Shaft Seal Installer
3	Transfer Case Assembly Procedure: Remove from the J 3289-20: Holding Fixture and remove the J 45759: Assembly Fixture from the transfer case.

Callout

Component Name

Transfer Case Input Shaft Seal
Tip:

Ensure the bore of the front case half is free of dirt, oil, and cleaning solvent.
Double lip input shaft oil seals are used on applications with a WET adapter cavity and with 4 speed transmission RPOs M30/M70/MW7/M99/ML9 only.
Single lip input shaft oil seals are used on applications with a DRY adapter cavity and with 6 speed transmission RPOs MYC/MYD only.

Special Tools:
J 42738: Seal Installer

Transfer Case Front Output Shaft Seal

Special Tools

J 8092: Universal Driver
J 43484: Front Output Shaft Seal Installer

Transfer Case Assembly
Procedure:
Remove from the J 3289-20: Holding Fixture and remove the J 45759: Assembly Fixture from the transfer case.