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