GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 416693  Size: SH

    Important: 

       • Ensure that the shift lever is positioned into the mechanical third or fourth gear prior to removal of the shift housing from the transmission. The transmission must remain in this state when the shift housing is removed.
       • Do not disassemble the transmission shift housing. Internal parts for this shift housing are not available. Opening the shift housing voids the warranty.
       • When removing the shift housing from the transmission, use the exposed bolts on the base of the housing.
       •  If equipped, remove the 3 console nuts and console.

  1. Remove the shift lever from the shift tower. DO NOT remove the shift lever adjusting nut.
  2. Remove the screws securing the boot to the panel.
  3. Remove the boot from the shift tower.

  4. Object Number: 178851  Size: SH
  5. Remove the shift tower housing bolts.
  6. Remove the shift tower housing from the transmission.

Installation Procedure


    Object Number: 178851  Size: SH
  1. Install the shift tower housing to the transmission.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the shift tower housing bolts.
  4. Tighten
    Tighten the shift tower housing bolts to 12 N·m (106 lb in).


    Object Number: 416693  Size: SH
  5. Install the boot to the shift tower.
  6. Install the shift boot screws.
  7. Tighten
    Tighten the shift boot screws to 2 N·m (18 lb in).

  8. Install the shift lever to the shift tower.