GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Park Pawl and Actuator Replacement

Removal Procedure
  1. Remove the oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .

    2. Object Number: 43307 Size: SH
  2. Remove the nut and the pin.
  3. Remove the detent lever and the actuator assembly.
  4. Remove the bolts and the parking pawl bracket.
  5. Remove the parking pawl return spring.
  6. Use the modified screw extractor in order to remove the plug.
  7. Remove the parking pawl shaft retainer, the shaft and the pawl.
  8. Remove the seal and the manual shaft.

Installation Procedure

    Object Number: 43307 Size: SH
  1. Install the pawl shaft.
  2. Install the parking pawl.
  3. Install the plug using a 5/16 inch rod with Loctite® or the equivalent.
  4. Install the retainer.
  5. Install the pawl return spring.
  6. Install the detent lever to the actuator assembly.
  7. Install actuator assembly over the parking pawl.
  8. Install the seal and the manual shaft.
  9. Install the nut on the shaft.
  10. Install the roll pin.

    11. 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.

  11. Install the parking lock bracket with the two bolts.

    12. Tighten
    Tighten the bolts to 24 N·m (18 lb ft).

  12. Install the oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .