GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 1998 🢒 Unit Repair 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 3L30 🢒 Transmission Overhaul

In order to overhaul, follow the sequence below.

  1. Holding Fixture Installation
  2. Torque Converter Assembly Removal
  3. Transmission Fluid Pan Removal
  4. Transmission Fluid Filter Assembly Removal
  5. Control Valve Body Assembly Removal
  6. Forward Band Servo Piston Removal
  7. Vacuum Modulator Valve Assembly Removal
  8. Detent Valve Assembly Removal
  9. Speedometer Driven Gear Removal
  10. Extension Housing Removal
  11. Extension Disassemble
  12. Speedometer Drive Gear Removal
  13. Governor Body Removal
  14. Governor Hub Removal
  15. Converter Housing/Oil Pump/Rev Clutch Removal
  16. Second Clutch and Third Clutch Assembly Removal
  17. Reverse Clutch Parts Removal
  18. Planetary Carrier and Output Assembly Removal
  19. Transmission Vent Removal
  20. Detent Lever and Manual Shaft Removal
  21. Transmission Case Electrical Connector Removal
  22. Transmission Case Inspection
  23. Detent Lever and Manual Shaft Installation
  24. Transmission Case Electrical Connector Installation
  25. Transmission Vent Installation
  26. Brake Band, Reaction Sun Gear, and Reaction Drum Assembly Installation
  27. Planetary Carrier Pinion Clearance Check
  28. Planetary Carrier Installation
  29. Third Clutch Housing Disassemble
  30. Third Clutch Disassemble
  31. Third Clutch Assemble
  32. Input Sprag Assembly Removal
  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 Assembly Installation
  40. Reverse Clutch Parts Installation
  41. Determining Selective Washer Thickness
  42. Selective Thrust Washer Installation
  43. Converter Housing Disassemble
  44. Transmission Fluid Pump Gear Clearance Check
  45. Transmission Fluid Pump Disassemble
  46. Reverse Clutch Disassemble
  47. Transmission Fluid Pump Assemble
  48. Reverse Clutch Assemble
  49. Converter Housing Assemble
  50. Converter Housing/Oil Pump/Rev Clutch Installation
  51. Governor Hub Installation
  52. Governor Body Disassemble
  53. Governor Body Assemble
  54. Governor Body Installation
  55. Speedometer Drive Gear Installation
  56. Extension Assemble
  57. Extension Housing Installation
  58. Speedometer Driven Gear Installation
  59. Detent Valve Assembly Installation
  60. Vacuum Modulator Valve Assembly Installation
  61. Forward Band Servo Piston Disassemble
  62. Forward Band Servo Piston Assemble
  63. Forward Band Servo Piston Installation
  64. Forward Band Servo Piston Adjustment
  65. Control Valve Body Disassemble
  66. Control Valve Body Assemble
  67. Control Valve Body Assembly Installation
  68. Oil Filter Assembly Installation
  69. Transmission Fluid Pan Installation
  70. Torque Converter Assembly Installation
  71. Holding Fixture Removal