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Park Lock Pawl & Actuator (4L80-E): Installation

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  1. Install the pawl shaft. Install the parking pawl. Install the plug using a 5/16" or (8 mm) rod with Loctite® or the equivalent. See Fig 1.
  2. Install the retainer. Install the pawl return spring. Install the detent lever to the actuator assembly. Install actuator assembly over the parking pawl.
  3. Install the manual shaft seal. Lubricate the manual shaft with transmission oil and install the manual shaft into the case. Install the nut on the shaft. Install the roll pin.
  4. Install the parking lock bracket with the 2 bolts. Tighten the bolts to specification. See TORQUE SPECIFICATIONS . Install the PNP switch. See PARK/NEUTRAL POSITION SWITCH .
  5. Install the oil pan and filter. See DRAINING & REFILLING  under LUBRICATION. Lower the vehicle. Fill transmission with appropriate fluid to proper level. See LUBRICATION .
Fig 1: Removing & Installing Park Lock Pawl & Actuator
G00096153Courtesy of GENERAL MOTORS CORP.
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