GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 41229 Manual Shaft Pin Installer

Removal Procedure


    Object Number: 2009890  Size: SH
  1. Remove the A/T range selector lever. Refer to Automatic Transmission Range Selector Lever Replacement.
  2. Remove the control valve body assembly. Refer to Control Valve Body Replacement.

  3. Object Number: 2009899  Size: SH
  4. Remove the manual shaft detent lever spring assembly and bolt.

  5. Object Number: 2009900  Size: SH

    Note: Discard the pin. It is not reusable.

  6. Remove the manual shift shaft pin (2) with a small nail puller.
  7. Remove the manual shaft detent lever hub pin (1) using a pry bar and pliers.
  8. Remove the manual shaft (3).
  9. Note: Do not pull the park actuator rod end out beyond the machined oil passage surface in the case. A no park condition will exist if the park pawl actuator assembly is pulled out of the transmission too far and the actuator rod disengages from the park pawl.

  10. Remove the manual shift detent lever assembly (4) from the transmission case after disconnecting it from the actuator assembly (5) carefully.

Installation Procedure


    Object Number: 2009903  Size: SH
  1. Connect the manual shaft detent lever assembly (2) to the actuator assembly (1) and install it in the case.
  2. Note: Lubricate the shaft with ATF to prevent damage to the manual shift shaft seal during installation.

  3. Install the manual shaft (3).
  4. Install the manual shaft detent lever hub pin (4).
  5. Specification
    Install the manual shaft detent lever hub pin to height of (b) 7.9 mm (0.38 in).

    Note: Use J 41229 to install the manual shift 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.

    Note: Use a new pin to ensure proper engagement with the case. Inspect manual shift shaft pin installed height (a) is within 7.2-8.2 mm (0.28-0.32 in).

  6. Install the manual shift shaft pin (5).
  7. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2009899  Size: SH
  8. Install the manual shaft detent lever spring assembly and bolt and tighten to 12 N·m (106 lb in).

  9. Object Number: 2009890  Size: SH
  10. Rotate the switch to check that the switch is installed correctly.
  11. Install the control valve body assembly. Refer to Control Valve Body Replacement.
  12. Install the A/T range selector lever. Refer to Automatic Transmission Range Selector Lever Replacement.