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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1560 (Propeller Shaft) >> Repair Instructions >> Driveline Support Assembly Replacement (Manual Transmission) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Rear Of Engine & Composite Dash Panel
GM321407Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
NOTE: When tilting down the rear of the driveline, observe the clearance between the rear of the engine and the composite dash panel. Do not allow the engine to rest unsupported against the composite dash panel, or vehicle damage may result.
NOTE: When lowering and removing the rear of the driveline, observe the clearance between the rear of the transaxle assembly and the underbody to prevent damage.
    Fig 2: Shift Control Knob Retainer To Slots & Retainer
    GM71522Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable.
  2. Remove the console. Refer to Console Replacement in Instrument Panel, Gauges and Console.
  3. Carefully pry off the shift control knob button.
  4. Pry the shift control knob retainer out of the slots and remove the retainer.
    5. Fig 3: Removing Gear Shift Knob
    GM71520Courtesy of GENERAL MOTORS CORP.
  5. Unscrew the shift control knob.
    6. Fig 4: Sides Of Shift Control Boot To I/P Accessory Trim Plate
    GM180587Courtesy of GENERAL MOTORS CORP.
  6. Grasp the sides of the shift control boot and apply light pressure in toward the shift control lever to begin to release the shift boot retaining tabs from the I/P accessory trim plate.
  7. Using light pressure, continue to release the remaining boot retaining tabs.
    8. Fig 5: Shift Control Boot To Shift Control Lever
    GM71519Courtesy of GENERAL MOTORS CORP.
  8. Lift the boot away from the trim plate and remove the boot.
  9. Remove the I/P accessory trim plate. Refer to Trim Plate Replacement - Instrument Panel (I/P) Accessory in Instrument Panel, Gauges and Console.
    10. Fig 6: Left I/P Lower Insulator Panel
    GM71524Courtesy of GENERAL MOTORS CORP.
  10. Remove the shift control closeout boot retaining nuts.
  11. Remove the shift control closeout boot.
  12. Remove the shift control assembly. Refer to Shift Control Assembly Replacement in Manual Transmission - MM6.
  13. Remove the left I/P lower insulator panel. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gauges and Console.
    14. Fig 7: View Of Master Cylinder Push Rod To Clutch Pedal
    GM71474Courtesy of GENERAL MOTORS CORP.
  14. Remove the clutch master cylinder pushrod retainer.
  15. Disconnect the clutch master cylinder pushrod from the clutch pedal.
    16. Fig 8: Clutch Actuator Cylinder Hose To Hose Retaining Clip At Rear Of Engine
    GM71473Courtesy of GENERAL MOTORS CORP.
  16. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  17. Remove the clutch actuator cylinder hose from the hose retaining clip, at the rear of the engine.
    18. Fig 9: Identifying White Circular Release Ring On The Actuator Hose
    GM71472Courtesy of GENERAL MOTORS CORP.
  18. Using the J 36221  , depress the white circular release ring on the actuator cylinder hose and simultaneously pull lightly on the master cylinder hose to disconnect. See Special Tools and Equipment .
  19. Protect both hose coupling ends from dirt and damage.
    20. Fig 10: Driveline Tunnel Closeout Panel
    GM180595Courtesy of GENERAL MOTORS CORP.
  20. Remove the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  21. Remove the catalytic converters. Refer to Catalytic Converter Replacement in Engine Exhaust.
  22. Tie off the muffler assemblies to the underbody to support out of the way.
  23. Remove the driveline tunnel closeout panel. Refer to Driveline Tunnel Closeout Panel Replacement .
    24. Fig 11: View Of Shock Absorber Mounting To Control Arm
    GM180606Courtesy of GENERAL MOTORS CORP.
  24. Remove the rear transverse spring. Refer to Rear Transverse Spring Replacement in Rear Suspension.
  25. Support the lower control arm with a straight jack.
  26. Disconnect the outer tie rod end from the suspension knuckle. Refer to Tie Rod Replacement (Outer End) or Tie Rod Replacement (Suspension Link) in Rear Suspension.
  27. Remove the shock absorber lower mounting bolt.
  28. Disconnect the lower ball joint from the suspension knuckle. Refer to Knuckle Replacement in Rear Suspension.
  29. Remove the straight jack from the control arm.
  30. Repeat steps 25 through 29 for the other side of the vehicle.
    31. Fig 12: Transmission Jack To Transmission
    GM180608Courtesy of GENERAL MOTORS CORP.
  31. Assemble the J 42055  . See Special Tools and Equipment .
  32. Install the J 42055  to a transmission jack. See Special Tools and Equipment .
  33. Position and firmly secure the J 42055  with the transmission jack to the transmission. See Special Tools and Equipment .
    34. Fig 13: View Of Transaxle Mount-To-Rear Crossmember Nuts
    GM180633Courtesy of GENERAL MOTORS CORP.
  34. Disconnect the wiring harness and brake pipe clip retainers from the rear suspension crossmember.
  35. Remove the transaxle mount to rear crossmember nuts.
    36. Fig 14: View Of Jack Supports
    GM180637Courtesy of GENERAL MOTORS CORP.
  36. Position a transmission jack under the rear suspension crossmember and firmly secure the crossmember to the jack.
  37. Using ONLY HAND TOOLS, remove the rear suspension crossmember retaining nuts.
    38. Fig 15: View Of Rear Suspension Crossmember
    GM180638Courtesy of GENERAL MOTORS CORP.
  38. With the aid of an assistant, slowly lower the rear suspension crossmember away from the vehicle frame rails and remove the crossmember.
    39. Fig 16: View Of Transaxle Mount Bracket & Bolts
    GM71501Courtesy of GENERAL MOTORS CORP.
  39. Remove the transaxle mount bracket to differential bolts.
  40. Remove the transaxle mount with bracket.

    Removing the transaxle mount will allow for greater stability on a workbench after the driveline is removed.

    41. Fig 17: Wheel Drive Shafts To Differential
    GM180644Courtesy of GENERAL MOTORS CORP.
  41. Using a pry bar, CAREFULLY release the wheel drive shafts from the differential.
  42. Tie off the wheel drive shafts (1) to the underbody to support out of the way.

    The muffler assembly pipes toward the rear offer a good location to help support the wheel drive shafts (1).

    43. Fig 18: Wiring Harness To L-Shaped Brackets At Driveline Support Assembly
    GM321406Courtesy of GENERAL MOTORS CORP.
  43. Release the retainer (1) securing (and positioning) the wiring harness to the L-shaped brackets along the driveline support assembly, then slide the harness up out of the brackets and position out of the way.
    44. Fig 19: Vehicle Speed Sensor (VSS) Electrical Connector
    GM180649Courtesy of GENERAL MOTORS CORP.
  44. SLOWLY lower the driveline approximately 51 mm (2 in), while simultaneously adjusting the angle of tilt, in order to access the electrical connectors.
  45. Disconnect the vehicle speed sensor (VSS) electrical connector.
    46. Fig 20: Wiring Harness Retainer To Stud At Differential Rear Cover
    GM71409Courtesy of GENERAL MOTORS CORP.
  46. Disconnect the wiring harness retainer from the stud at the differential rear cover.
  47. Disconnect the wiring harness retainer clip from the top of the differential.
    48. Fig 21: Backup Lamp Switch Electrical Connector
    GM180651Courtesy of GENERAL MOTORS CORP.
  48. Disconnect the backup lamp switch electrical connector.
    49. Fig 22: Reverse Lockout Solenoid Electrical Connector
    GM180652Courtesy of GENERAL MOTORS CORP.
  49. Disconnect the reverse lockout solenoid electrical connector.
    50. Fig 23: Gear Select (Skip Shift) Solenoid Electrical Connector
    GM180654Courtesy of GENERAL MOTORS CORP.
  50. Disconnect the gear select (skip shift) solenoid electrical connector.
    51. Fig 24: Transmission Fluid Temperature Sensor Electrical Connector
    GM315711Courtesy of GENERAL MOTORS CORP.
  51. Disconnect the transmission fluid temperature sensor electrical connector, if equipped.
    52. Fig 25: Edge Of Shifter Bracket On Side Of Driveline Support Assembly & Brake Pipe Retainer
    GM180656Courtesy of GENERAL MOTORS CORP.
  52. Insert a putty knife, or similar tool, between the edge of the shifter bracket on the side of the driveline support assembly and the brake pipe retainer on the wall of the driveline tunnel.
    53. Fig 26: Wiring Harness To Harness Retainer At Top Of Transmission
    GM180740Courtesy of GENERAL MOTORS CORP.
  53. SLOWLY lower the driveline, while simultaneously adjusting the angle of tilt, and observe the relationship between the top rear of the differential and the lowest part of the rear compartment panel floor (the center storage compartment between the frame rails); the differential should not be lowered more than approximately EVEN with the specified body point of reference.

    The engine positive crankcase ventilation (PCV) pipes which route along the rear of the engine intake manifold [LS1 only] will likely contact the dash panel.

  54. Release the wiring harness from the harness retainer along the top of the transmission.
  55. Check to be sure that the wiring harness is free from the driveline being removed.
    56. Fig 27: Driveline Support Assembly To Engine Flywheel Housing Bolts
    GM180741Courtesy of GENERAL MOTORS CORP.
  56. Using a block of wood to protect the engine oil pan, place a straight jack under the rear of the engine oil pan to support the engine from stressing the composite dash panel.
  57. Remove the five driveline support assembly to engine flywheel housing bolts.
  58. Carefully bend the wiring harness bracket away from the driveline toward the driveline tunnel wall in order to make a clear removal path for the driveline.
    59. Fig 28: Edge Of Driveline Support Assembly & Engine Flywheel Housing
    GM180742Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The aid of an assistant will be necessary for the remaining steps.
  59. Have an assistant insert a flat bladed screwdriver, or similar tool, between the edge of the driveline support assembly and the engine flywheel housing, then begin to pry the driveline loose from the engine.
    60. Fig 29: Propeller Input Shaft At Rear Of Engine Flywheel Housing
    GM71467Courtesy of GENERAL MOTORS CORP.
  60. Have an assistant guide the front of the driveline during the removal of the driveline from the vehicle.
  61. SLOWLY lower the driveline, while simultaneously adjusting the angle of tilt and pulling the driveline away from the engine UNTIL the propeller input shaft at the front of the driveline support assembly just clears the engine flywheel housing.
  62. SLOWLY lower the driveline completely out of the vehicle.
    63. Fig 30: Rear Exhaust Hangers At Driveline Support Assembly
    GM180744Courtesy of GENERAL MOTORS CORP.
  63. Position the chainfall, or equivalent lifting device, in a way which will protect the rear exhaust hangers located on the driveline support assembly.
  64. Using the lifting device, raise the driveline to relieve the weight from the transmission jack.
  65. Disconnect the J 42055  from the transmission jack ONLY; the J 42055  will provide stability to the driveline components while working on a bench. See Special Tools and Equipment .
  66. Position the driveline on a workbench with the lifting device still attached.
  67. Support the driveline support assembly and the differential for additional balance.
  68. Remove the lifting device from the driveline.
    69. Fig 31: Clutch Actuator Cylinder Mounting Bolts
    GM71481Courtesy of GENERAL MOTORS CORP.
  69. Remove the clutch actuator cylinder mounting bolts.
  70. Remove the clutch actuator cylinder from the driveline support assembly.
    71. Fig 32: Rear Exhaust Hanger Mounting Bolts
    GM180748Courtesy of GENERAL MOTORS CORP.
  71. Remove the rear exhaust hanger mounting bolts.
  72. Remove the rear exhaust hangers from the driveline support assembly.
    73. Fig 33: Transmission To Driveline Support Assembly Bolts/Studs
    GM71538Courtesy of GENERAL MOTORS CORP.
  73. Remove the transmission to driveline support assembly bolts/studs.
  74. Insert a flat bladed screwdriver, or similar tool, between the edge of the driveline support assembly and the transmission, then begin to pry the driveline support assembly loose from the transmission.
    75. Fig 34: Driveline Support Assembly To Transmission Shift Rod
    GM71537Courtesy of GENERAL MOTORS CORP.
  75. Slowly slide the driveline support assembly away from the transmission while guiding the transmission shift rod through the opening in the driveline support assembly.
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