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Home >> Hummer >> 2007 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 1055 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> On-Vehicle Repair Instructions >> Manual Shift Detent Lever & Park Pawl Actuator Replacement

Manual Shift Detent Lever & Park Pawl Actuator Replacement

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Manual Shift Detent Lever & Park Pawl Actuator Component View
GM1657889Courtesy of GENERAL MOTORS CORP.
Manual Shift Detent Lever and Park Pawl Actuator Replacement

Callout Component Name
IMPORTANT: Do not remove the park pawl or park pawl spring. The park pawl and park pawl spring are not serviceable components.

Preliminary Procedures

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transmission fluid pan. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement .
  3. Remove the manual shaft detent assembly roller. Refer to Control Valve Lower Body and Upper Body Replacement .
1 Manual Shaft Detent Lever Hub Pin
Tip: 
  • Discard the pin. Replace with NEW pin.
  • "Walk" the pin out using side cutters.
2 Manual Shift Shaft Pin
Tip: 
  • Discard the pin. Replace with NEW pin.
  • "Walk" the pin out using side cutters.
3 Manual Shift Shaft
4 Manual Shaft Detent Lever Assembly
5 Park Pawl Actuator Assembly
6 Park Pawl Actuator Guide Pin
Tip: 
  • Discard the pin. Replace with NEW pin.
  • "Walk" the pin out using side cutters.
7 Park Pawl Actuator Guide
8 Park Pawl Actuator Guide (O-Ring) Seals (Qty: 2)
Tip:  Discard the seals. Replace with NEW seals.