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Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Shift the transmission into 3rd or 4th gear.
  2. Remove the shift lever assembly. Refer to Shift Lever Assembly Replacement .
  3. Drain the transmission fluid.
  4. If vehicle is a 2 wheel drive (2WD), remove the propeller shaft. Refer to Propeller Shaft Replacement - One Piece or Propeller Shaft Replacement - Two Piece in Propeller Shaft.
  5. If vehicle is a 4 wheel drive (4WD), remove the transfer case. Refer to Transfer Case Assembly Replacement in Transfer Case - NVG261-NP2 (Two Speed Manual) or Transfer Case Assembly Replacement in Transfer Case - NVG261-NP1 (Selectable).
  6. Using J 42371  , push back on the white plastic sleeve on the quick connect in order to separate the hydraulic clutch line from the clutch actuator quick connect.
    Fig 1: Separating The Hydraulic Clutch Line From The Clutch Actuator Quick Connect
    GM102888Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the following engine wiring harness electrical connectors:
    • Backup lamp switch (1)
    • Vehicle speed sensor (VSS) (3)
    • Oxygen sensor (4)
    Fig 2: Disconnecting Wiring Harnesses
    GM775031Courtesy of GENERAL MOTORS CORP.
  8. Remove the oxygen sensor (2) from the transmission bracket.
  9. Remove the engine harness clips from the fuel feed/return line clip/bracket.
    10. Fig 3: Remove The Vent Hose Clip From The Bracket (4WD)
    GM775346Courtesy of GENERAL MOTORS CORP.
  10. If equipped with 4WD, remove the vent hose clip from the bracket.
    11. Fig 4: Removing The Vent Hose Clip From The Fuel Feed/Return Hose Bracket (4WD)
    GM775339Courtesy of GENERAL MOTORS CORP.
  11. If equipped with 4WD, remove the vent hose clip (1) from the fuel feed/return hose bracket.
    12. Fig 5: Removing The Fuel Feed/Return Hose Clip From The Bracket (4WD)
    GM775356Courtesy of GENERAL MOTORS CORP.
  12. If equipped with 4WD, remove the fuel feed/return hose clip from the bracket.
  13. Remove the starter. Refer to Starter Motor Replacement (4.3L Engine) or Starter Motor Replacement (4.8L, 5.3L, and 6.0L Engines) or Starter Motor Replacement (6.6L (LB7) Engine) or Starter Motor Replacement (6.6L (LLY) Engine) or Starter Motor Replacement (8.1L Engine) in Engine Electrical.
  14. Support the transmission using a suitable transmission jack.
  15. Remove the transmission support. Refer to Transmission Support Replacement in Frame and Underbody.
    16. Fig 6: Disconnecting The Vent Hose From The Transmission
    GM775337Courtesy of GENERAL MOTORS CORP.
  16. Disconnect the vent hose from the transmission.
  17. Remove the vent hose clip from the clutch housing.
    18. Fig 7: Removing The Transmission From The Clutch Housing
    GM775391Courtesy of GENERAL MOTORS CORP.
  18. Remove the transmission to clutch housing bolts.
  19. Remove the transmission from the clutch housing.
    20. Fig 8: Removing The Clutch Housing Bolts/Studs
    GM775394Courtesy of GENERAL MOTORS CORP.
  20. If required, remove the clutch housing bolts/studs.
  21. If required, remove the clutch housing.
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