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Home › Hummer › 2009 › H3T Base, Standard › Repair and Diagnosis › Transmission › Manual Transmission › Repair Instructions - On Vehicle › Transmission Replacement › Installation Procedure

Installation Procedure

    NOTE: Ensure clearance is maintained between the transmission and the following:
    • The catalytic converter
    • The clutch assembly
    • The engine wiring harness
    • The fuel hose/pipe brackets
    • The heater pipe
  1. Using the transmission jack, carefully raise the transmission to the engine.
    2. Fig 1: View Of Transmission Mounting Bolts & Engine Dowels
    GM1302115Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not allow the transmission to hang from the clutch assembly.
  2. Align the transmission with the engine dowels (1).
    3. CAUTION: Refer to Fastener Caution .
  3. Install the 2 transmission mounting bolts (2).

    Tighten:  Tighten the transmission mounting bolts to 50 N.m (37 lb ft).

    4. Fig 2: View Of Transmission Mounting Bolts
    GM1302117Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • Ensure the studded mounting bolts (2) are located in the correct position.
    • The heater pipe (1) must be secured with the 2 upper mounting bolts.
  4. Install the remaining transmission mounting bolts.

    Tighten:  Tighten the transmission mounting bolts to 50 N.m (37 lb ft).

    5. Fig 3: Removing/Installing Service Slot Plug
    GM1563906Courtesy of GENERAL MOTORS CORP.
  5. Install the service slot plug (1).
  6. Install the transmission crossmember. Refer to Transmission Support Crossmember Replacement .
  7. Remove the transmission jack from under the vehicle.
    8. Fig 4: View Of Fuel Hose/Pipe Bracket & Nuts (MA5)
    GM1302111Courtesy of GENERAL MOTORS CORP.
  8. Install the nuts securing the fuel hose/pipe brackets to the transmission.

    Tighten:  Tighten the fuel hose/pipe brackets nuts to 20 N.m (15 lb ft).

    9. Fig 5: Locating Wiring Harness Clip
    GM1563903Courtesy of GENERAL MOTORS CORP.
  9. Connect the engine wiring harness clip (1) to the clip brackets.
  10. Lay the engine wiring harness over the transmission.
    11. Fig 6: Identifying Engine Wiring Harness Electrical Connector At Backup Lamp Switch
    GM1563899Courtesy of GENERAL MOTORS CORP.
  11. Connect the engine wiring harness electrical connector (1) to the backup lamp switch (2).
  12. Connect the engine wiring harness clip (3) to the clip bracket.
    13. Fig 7: View Of Clutch Hydraulic Hose Quick Connect Fitting
    GM1302134Courtesy of GENERAL MOTORS CORP.
    NOTE: Ensure the clutch hydraulic hose does not come in contact with any sharp or potential hot surfaces.
  13. Push the clutch hydraulic hose quick connect fitting (2) into the clutch slave cylinder, until a "click" is heard.
  14. Tug gently on the clutch hydraulic hose to ensure proper retention into the clutch slave cylinder.
  15. Install the transfer case assembly. Refer to Transfer Case Assembly Replacement .
  16. Fill the transmission fluid if removed. Refer to Transmission Fluid Replacement .
  17. Install the control lever and boot. Refer to Control Lever and/or Boot Replacement .
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