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Home >> Hummer >> 2009 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L80 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Manual Shift Shaft and Seal Replacement

Manual Shift Shaft and Seal Replacement

Fig 1: Identifying Manual Shift Shaft & Seal
GM1655113Courtesy of GENERAL MOTORS CORP.
Callout Component Name

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 control valve body. Refer to Control Valve Lower Body and Upper Body Replacement .
1 Manual Shift Shaft Pin

Procedure

  1. Discard the pin. Replace with NEW pin.
  2. "Walk" the pin out using side cutters.
2 Manual Shaft Detent Lever Hub Pin

Procedure

  1. Discard the pin. Replace with NEW pin.
  2. "Walk" the pin out using side cutters.
3 Manual Shift Shaft
Tip:  The manual shaft must be removed to replace the manual shaft seal.
4 Manual Shift Shaft Seal

Procedure

  1. Use the J 45201  to remove the seal from the transmission case. See Special Tools .
  2. Use the DT 47770  to install the seal into the transmission case. See Special Tools .

Special Tools