Manual Shift Shaft And Seal Replacement

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Manual Shift Shaft And Seal

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Remove the automatic transmission range select lever. Refer to Automatic Transmission Range Selector Lever Replacement . If equipped with four wheel drive, remove the front propeller shaft. Refer to Front Axle Propeller Shaft Replacement (NQH)Front Axle Propeller Shaft Replacement (Heavy Duty) . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the transmission fluid pan. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement . Remove the control valve body. Refer to Control Valve Lower Body and Upper Body Replacement .
1	Manual Shift Shaft Pin Procedure Discard the pin. Replace with NEW pin. "Walk" the pin out using side cutters.
2	Manual Shaft Detent Lever Hub Pin Procedure Discard the pin. Replace with NEW pin. "Walk" the pin out using side cutters.
3	Manual Shift Shaft NOTE: The manual shaft must be removed to replace the manual shaft seal.
4	Manual Shift Shaft Seal Procedure Use the J-45201 cooler line seal remover to remove the seal from the transmission case. Use the DT-47770 seal installer to install the seal into the transmission case. Special Tools DT-47770 Seal Installer J-45201 Cooler Line Seal Remover For equivalent regional tools, refer to Special Tools .