Input Shaft Seal and Front Output Shaft Seal Installation

WARNING: This page is about a different car, the 2017 GMC Yukon XL, 2017 GMC Yukon, 2017 Chevrolet Tahoe, and 2017 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Transfer Case Assembly, Input Shaft Seal & Front Output Shaft Seal

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Transfer Case Input Shaft Seal Procedure Use the DT-50648 - A or J-42738 . Refer to Input Shaft Seal Installer Revisions in New Product Information . NOTE: 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, and are to be installed with the spring portion of the seal facing inward towards the internals of the transfer case. Special Tools DT-50648 - A Seal Installer J-36183 Input and Output Shaft Press Tube J-36184 Press Tube Reducer J-42738 Seal Installer For equivalent regional tools, refer to Special Tools .
2	Transfer Case Front Output Shaft Seal Special Tools J-8092 Driver Handle DT-50649 Seal Installer For equivalent regional tools, refer to Special Tools .
3	Transfer Case Front Output Shaft Oil Slinger - Model Dependent Procedure The new design front output shaft oil slinger can be installed onto all current and prior model year Magna NQF, NQG, NQH, and NP0 applications providing the new design front output shaft is also installed. Refer to New Product Information . Special Tools J-8092 Driver Handle DT-50649 Seal Installer For equivalent regional tools, refer to Special Tools .
4	Transfer Case Assembly Procedure Remove from J-3289-20 Holding Fixture and remove the J-45759 Assembly Fixture from the transfer case. Special Tools J-3289-20 Holding Fixture J-45759 Assembly Fixture For equivalent regional tools, refer to Special Tools .