GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the propeller shaft. Refer to Propeller Shaft Replacement .
  3. Remove the transmission fluid pan. Refer to Automatic Transmission Fluid and Filter Replacement .

  4. Object Number: 795918  Size: SH
  5. Using two equally sized suitable blocks of wood and a suitable transmission jack positioned under the transmission pan area. Support the transmission case on both sides with the wood blocks to prevent the transmission internal components from contacting the transmission jack.
  6. Remove the extension housing. Refer to Case Extension and Gasket Replacement .

  7. Object Number: 854136  Size: SH
  8. Remove the parking pawl spring.
  9. Remove the parking pawl pivot pin.
  10. Remove the parking pawl.
  11. Inspect the following:
  12. • Parking pawl tooth for chipping or wear
    • Parking pawl spring for over expansion
    • Pivot pin for scoring, excessive wear

Installation Procedure


    Object Number: 830384  Size: SH
  1. Install the parking pawl (3).
  2. Install the pivot pin (1).
  3. Install the parking pawl spring (2). The straight end of the spring locates against the case and the hooked end locates over the parking pawl.
  4. Install the extension housing. Refer to Case Extension and Gasket Replacement .
  5. Remove the transmission jack.
  6. Install the transmission fluid pan. Refer to Automatic Transmission Fluid and Filter Replacement .
  7. Install the propeller shaft. Refer to Propeller Shaft Replacement .
  8. Fill the transmission to the proper level. Refer to Transmission General Specifications , Fluid Capacity Specifications , and Transmission Fluid Check .
  9. Lower the vehicle.