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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - 8L90 (M5U MQD) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Manual Shift Shaft Seal Replacement >> Installation Procedure

Installation Procedure

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  1. GM3817501Courtesy of GENERAL MOTORS COMPANY

    Install the NEW manual shift shaft seal (1) using DT-47770  seal installer.

  2. GM3817211Courtesy of GENERAL MOTORS COMPANY

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

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