GM Service Manual Online
For 1990-2009 cars only

In order to overhaul, follow the sequence below.

  1. Torque Converter Assembly Removal
  2. Holding Fixture Installation
  3. Transmission Fluid Draining
  4. 4th Clutch Accumulator Piston Removal
  5. Adapter Case Oil Pan Removal
  6. Adapter Case Wiring Harness Removal
  7. Adapter Case Control Valve Assembly Removal
  8. Main Case Oil Pan Removal
  9. Oil Filter Removal
  10. Main Case Wiring Harness Removal
  11. Main Case Control Valve Assembly Removal
  12. Forward Band Servo Piston Removal
  13. Speed Sensor Removal
  14. Extension Housing Removal
  15. Speedometer Wheel and Park Lock Wheel Removal
  16. Oil Pump and Torque Converter Housing Removal
  17. Overdrive Unit and Fourth Clutch Assembly Removal
  18. Adapter Case Removal
  19. Second Clutch and Third Clutch Assembly Removal
  20. Planetary Carrier and Output Assembly Removal
  21. Brake Band Removal
  22. Detent Lever and Manual Shaft Removal
  23. Main Case Breather Removal
  24. Transmission Case Inspection
  25. Main Case Breather Installation
  26. Detent Lever and Manual Shaft Installation
  27. Brake Band, Reaction Sun Gear, and Reaction Drum Assembly Installation
  28. Planetary Carrier Pinion Clearance Check
  29. Planetary Carrier Installation
  30. Input Sprag Assembly Removal
  31. Third Clutch Disassemble
  32. Third Clutch Assemble
  33. Input Sprag Disassemble
  34. Input Sprag Assemble
  35. Input Sprag Assembly Installation
  36. 2nd Clutch Disassemble
  37. 2nd Clutch Assemble
  38. Third Clutch Housing Assemble
  39. Third Clutch Housing Installation
  40. Reverse Clutch Parts Installation
  41. Adapter Case Disassemble
  42. Center Support Assembly Removal
  43. Center Support Disassemble
  44. Center Support Inspection
  45. Center Support Assemble
  46. Center Support Assembly Installation
  47. Determining Main Case Selective Washer Thickness
  48. Reverse Clutch Piston Installation
  49. Selective Thrust Washer Installation
  50. 4th Clutch Assembly Installation
  51. Adapter Case Assembly Installation
  52. Overdrive Disassemble
  53. Overrun Clutch Housing Disassemble
  54. Overdrive Carrier Pinion Gear End Play Check
  55. Overrun Clutch Housing Assemble
  56. Overdrive Assemble
  57. Overdrive Unit/Fourth Clutch Assembly Installation
  58. 4th Clutch Accumulator Piston Installation
  59. Converter Housing Disassemble
  60. Transmission Fluid Pump Gear Clearance Check
  61. Transmission Fluid Pump Disassemble
  62. Transmission Fluid Pump Assemble
  63. Converter Housing Assemble
  64. Converter Housing Selective Thrust Washer Check
  65. Converter Housing Assembly Installation
  66. Overdrive Unit End Play Check
  67. Extension Disassemble
  68. Extension Assemble
  69. Speedometer Wheel Disassemble
  70. Extension Housing and Speedometer Whl Installation
  71. Main Case End Play Check
  72. Drive Flange Installation
  73. Forward Band Servo Piston Disassemble
  74. Forward Band Servo Piston Assemble
  75. Forward Band Servo Piston Installation
  76. Forward Band Servo Piston Adjustment
  77. Main Case Control Valve Body Disassemble
  78. Main Case Control Valve Body Assemble
  79. Main Case Control Valve Assembly Installation
  80. Main Case Wiring Harness Installation
  81. Oil Filter Assembly Installation
  82. Main Case Oil Pan Installation
  83. Adapter Case Control Valve Disassemble
  84. Adapter Case Control Valve Assemble
  85. Adapter Case Control Valve Assembly Installation
  86. Adapter Case Wiring Harness Installation
  87. Adapter Case Oil Pan Installation
  88. Torque Converter Assembly Installation
  89. Holding Fixture Removal