Input Shaft Seal and Front Output Shaft Seal Installation

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
2	Transfer Case Front Output Shaft Seal Special Tools DT-50649 Seal Installer J-8092 Driver Handle
3	Transfer Case Front Output Shaft Oil Slinger - Model Dependent NOTE: Refer to Interim Model Year Design Change - NQF/NQG/NQH/NPO Front Output Shaft, Deflector, Seal in the New Product Information. Special Tools J-8092 Driver Handle DT-50649 Seal Installer
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