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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Manual Shift Shaft Position Switch Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM3817350Courtesy of GENERAL MOTORS COMPANY

    Connect the park pawl actuator rod (2) to the manual shift shaft position switch (1).

  2. Install the manual shift shaft position switch assembly (1).
  3. GM3817211Courtesy of GENERAL MOTORS COMPANY

    Install the manual shift shaft (2) aligning the position switch assembly onto the shaft.

  4. Install the NEW manual shift shaft pin (1).
  5. Install the NEW manual shift shaft detent lever hub pin (3).
  6. Install the control valve body. Refer to Control Valve Body Replacement .
  7. Install the automatic transmission range selector lever. Refer to Automatic Transmission Range Selector Lever Replacement .
  8. Install the control valve body. Refer to Control Valve Body Replacement .
  9. Reprogram the transmission. Solenoid Valve Characterization Reprogramming
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