GM Service Manual Online
For 1990-2009 cars only

In order to overhaul, follow the sequence below.

  1. Holding Fixture Installation
  2. Torque Converter Assembly Removal
  3. Drain Oil
  4. 2-4 Servo Cover and Assembly Removal
  5. 2-4 Servo Disassemble
  6. 2-4 Band Servo Piston Pin Length Check
  7. Vehicle Speed Sensor and Case Extension Removal
  8. Transmission Fluid Pan and Filter Assembly Removal
  9. Control Valve Body and Wiring Harness Removal
  10. Converter Housing Removal
  11. Turbine Shaft O-Ring Removal
  12. Transmission End Play Check
  13. Oil Pump Removal
  14. 2-4 Band, Input Clutches, Input Gear Set Removal
  15. Reaction Gear Set Removal
  16. Output Shaft, Reaction Gear, Low/Rev Clutch Removal
  17. Inner Manual Linkage Removal
  18. Low and Reverse Clutch Piston Removal
  19. Case Assembly Inspection
  20. 3rd Accumulator Retainer with Ball Assembly Leak Check
  21. 3rd Accumulator Retainer with Ball Replacement
  22. Case Bushing
  23. Manual Shift Shaft Seal Installation
  24. Low and Reverse Clutch Piston Installation
  25. Inner Manual Linkage Installation
  26. Reaction Gear and Carrier Inspection
  27. Reaction Gear and Carrier Installation
  28. Low and Reverse Clutch Spacer Plate Selection
  29. Low and Reverse Clutch Plate Installation
  30. Low and Reverse Clutch Support Disassemble
  31. Low and Reverse Clutch Support Installation
  32. Reaction Sun Gear and Shell Installation
  33. Reaction Carrier Shaft Replacement
  34. Input Internal Gear, Reaction Shaft Installation
  35. Internal Transmission Speed Sensor Rotor Replacement
  36. Output Shaft Installation
  37. Input Carrier Inspection
  38. Input Sun Gear Bushing Replacement
  39. Input Carrier Inspection and Installation
  40. Input Clutch Assembly Disassemble
  41. Input Housing and Shaft Assembly Inspection
  42. Input Housing and Shaft Assembly Assemble
  43. Input Housing to Output Shaft Seal Installation
  44. Overrun Clutch Installation
  45. Forward Clutch Sprag Disassemble
  46. Forward Clutch Sprag Assemble
  47. Forward Clutch Assembly Assemble
  48. Forward Clutch Piston Travel Check
  49. 3-4 Clutch Assemble
  50. 3-4 Clutch Plate Travel Check
  51. Clutch Air Check
  52. Turbine Shaft Seal Installation
  53. Reverse Input Clutch Disassemble
  54. Reverse Input Clutch Bushing Replacement
  55. Reverse Input Clutch Assemble
  56. Reverse Input Clutch Plate Travel Check
  57. Reverse Input and 3-4 Clutch Housing Installation
  58. 2-4 Band Installation
  59. Oil Pump Disassemble
  60. Oil Pump Body Disassemble
  61. Oil Pump Rotor and Slide Measurement
  62. Oil Pump Body Bushing Replacement
  63. Oil Pump Body Assemble
  64. Oil Pump Cover Disassemble
  65. Oil Pump Stator Shaft Bushing Replacement
  66. Oil Pump Cover Assemble
  67. Oil Pump Cover and Body Assemble
  68. Oil Pump Assembly Installation
  69. Transmission End Play Check
  70. Converter Housing Installation
  71. Turbine Shaft O-Ring Installation
  72. Control Valve Body Disassemble
  73. Control Valve Body Assemble
  74. 3-4 Accumulator Installation
  75. 1-2 Accumulator Disassemble
  76. 1-2 Accumulator Assemble
  77. 1-2 Accumulator Installation
  78. Control Valve Body Installation
  79. Manual Detent Spring Installation
  80. Oil Filter Assembly Installation
  81. Transmission Fluid Pan Installation
  82. 2-4 Servo Disassemble
  83. 2-4 Band Servo Piston Pin Length Check
  84. 2-4 Servo Assembly Installation
  85. Case Extension Bushing Replacement
  86. Vehicle Speed Sensor and Case Extension Installation
  87. Torque Converter End Play Inspection
  88. Torque Converter Installation
  89. Holding Fixture Removal