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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1159 (Manual Transmission - AISIN AY6) >> Repair Instructions - On Vehicle >> Transmission Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Ensure clearance is maintained between the transmission and the following:
    • The clutch assembly
    • The input shaft
    • The catalytic converters
    • The wiring harnesses
    • The propeller shaft
  1. Using the transmission jack, carefully raise the transmission to the vehicle.
    2. Fig 1: Identifying Transmission Bolts
    GM1979746Courtesy of GENERAL MOTORS CORP.
  2. Align the transmission with the engine dowels.
    3. NOTE: Refer to Fastener Notice .
  3. Install the transmission bolts (1-6).

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

    4. Fig 2: Identifying Clutch Retaining Hose Retaining Clip & Clutch Hydraulic Hose
    GM802767Courtesy of GENERAL MOTORS CORP.
  4. Install the clutch hydraulic hose retaining clip (1) to the clutch slave cylinder.
    5. IMPORTANT: Ensure the clutch hydraulic hose is routed in an upward direction above the clutch slave cylinder with no sharp bends, kinks, or downward loops. Ensure the clutch hydraulic hose does not come in contact with any sharp or potentially hot surfaces.
  5. Install the clutch hydraulic hose to the vehicle.
  6. Align the clutch hydraulic hose locating tab with the notch in the slave cylinder hose fitting.
  7. Push the clutch hydraulic hose (2) into the clutch slave cylinder until a "click" is heard.
  8. Tug gently on the clutch hydraulic hose (2) to ensure proper retention to the clutch slave cylinder.
  9. Install the transmission control. Refer to Transmission Control Replacement .
  10. Remove the transmission jack.
  11. Install the transmission support. Refer to Transmission Support Replacement (Manual Transmission) or Transmission Support Replacement (Automatic Transmission) .
    12. Fig 3: View Of Electrical Connector And Harness Retainers
    GM1979752Courtesy of GENERAL MOTORS CORP.
  12. Install the electrical harness retainers (2) to the transmission.
    13. Fig 4: View Of Electrical Connector And Harness Retainers
    GM1979751Courtesy of GENERAL MOTORS CORP.
  13. Install the electrical harness retainers (1) to the transmission.
  14. Connect the electrical connector (4) to the backup lamp switch.
  15. Connect the electrical connector (5) to the vehicle speed sensor.
  16. Install the propeller shaft. Refer to Rear Propeller Shaft Replacement (RWD) or Rear Propeller Shaft Replacement (AWD) .
  17. Install the catalytic converters. Refer to Catalytic Converter Replacement - Left Side and Catalytic Converter Replacement - Right Side .
  18. Install the exhaust system. Refer to Exhaust System Replacement (With LY7 and LLT) or Exhaust System Replacement (With LP1) .
  19. Inspect the transmission fluid level. Refer to Transmission Fluid Level Inspection .
  20. Lower the vehicle.
  21. Install the manual transmission control mount plate assembly. Refer to Transmission Control Mount Plate Replacement .
  22. Install the transmission control lever knob. Refer to Transmission Control Lever Knob Replacement .
    23. Fig 5: Identifying J 42640
    GM333146Courtesy of GENERAL MOTORS CORP.
  23. Unlock the steering column by removing the J 42640  from the steering column lower trim cover access hole.
  24. Bleed the clutch hydraulic system. Refer to Hydraulic Clutch Bleeding .
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