GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Malibu 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 6T40/6T45 🢒 Manual Shift Detent Lever with Shaft Position Switch Assembly Replacement

Special Tools

    • DT-48550 Detent Lever Pin Remover
    • J 41229 Manual Shaft Pin Installer

Removal Procedure

  1. Remove the control valve body. Refer to Control Valve Body Replacement.

    2. Object Number: 1998834 Size: SH
  2. Remove the manual shaft detent lever hub pin (1) using DT-48550 .
  3. Remove the manual shift shaft pin (5). Discard the pin.
  4. Remove the manual shaft (2).

    5. Important: Disconnect the actuator rod (3) from the detent lever assembly. Do not remove the actuator rod from the transmission case.

  5. Remove the manual shaft detent (w/shift position switch) lever assembly (4).

Installation Procedure


    Object Number: 1998832 Size: SH

    Important: Connect the actuator rod (3) to the detent lever assembly.

  1. Install the manual shaft detent (w/shift position switch) lever assembly (4).

    2. Important: Lubricate the shaft with automatic transmission fluid to prevent damage to the manual shift shaft seal during installation.

  2. Install the manual shaft (2).
  3. Install the manual shaft detent lever hub pin (1) using DT-48550 .

    4. Specification
    Install the Manual Shaft Detent Lever Hub Pin to height of (b) 7.9 mm (0.38 in).

    Notice: Use J 41229 to install the manual shaft pin at the correct height in order to properly secure the manual shaft. If you install the pin too deep, the case bore may crack.

  4. Install the NEW manual shift shaft pin (5) using J 41229 . Use a NEW pin to ensure proper engagement with the case.

    5. Specification
    Inspect pin installed height is within (a) 7.2-8.2 mm (0.28-0.32 in).

  5. Install the control valve body. Refer to Control Valve Body Replacement.
  6. Perform the service fast learn adapt procedure. Refer to Service Fast Learn Adapts.