GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 24204-2 Bar and Stud Assembly
    • J 43772 Torque Converter Seal Installer
    • J 47339-1 Piston Return Spring Compressor
    • J 47339-2 Seal Area Protector

For equivalent regional tools, refer to Special Tools.


    Object Number: 1217076  Size: SH
  1. Position the 1-2-3-4, 4-5-6 clutch assembly (4) on the work table so that the rear of the assembly is up.
  2. Remove the retaining ring (1) from the 1-2-3-4, 4-5-6 clutch assembly.
  3. Remove the input sun gear (3) with the input drive flange (2) attached.
  4. Remove the input sun gear from the drive flange.

  5. Object Number: 1217075  Size: SH
  6. Remove the bronze thrust washer (1) from the 4-5-6 drive hub (2).

  7. Object Number: 1217072  Size: SH
  8. Remove the 4-5-6 drive hub (1).
  9. Note: The thrust bearing assembly may stick to the 1-2-3-4 clutch drive hub or the 4-5-6 clutch drive hub.

  10. Remove the thrust bearing assembly (2) from the rear of the 1-2-3-4 clutch drive hub (3) or the front of the 4-5-6 clutch drive hub (1).
  11. Remove the 1-2-3-4 clutch drive hub (3).
  12. Note: The thrust bearing assembly may stick to the rear of the turbine shaft or the front of the 1-2-3-4 clutch drive hub.

  13. Remove the thrust bearing assembly (4) from the rear of the turbine shaft (5) or the front of the 1-2-3-4 clutch drive hub (3).

  14. Object Number: 1217073  Size: SH
  15. Remove seven 4-5-6 clutch steel plates (1) and six 4-5-6 clutch fiber plates (2) from the 1-2-3-4, 4-5-6 clutch housing (3).

  16. Object Number: 1217070  Size: SH
  17. Remove the internal spiral retaining ring (1) from the 1-2-3-4 clutch backing plate (3).
  18. Remove the retaining ring (2) from the turbine shaft (4).
  19. Remove the 1-2-3-4 clutch backing plate (3) from the turbine shaft (4).

  20. Object Number: 1217065  Size: SH
  21. Remove six 1-2-3-4 clutch fiber plates (1) and six 1-2-3-4 clutch steel plates (2) from the turbine shaft (3).

  22. Object Number: 1217064  Size: SH

    Warning: Personal injury and/or property damage may result from the movement of the 1-2-3-4, 4-5-6 clutch housing or the turbine shaft. The 1-2-3-4, 4-5-6 clutch housing and turbine shaft are held together by a retaining ring. Removing the retaining ring allows the turbine shaft and the 1-2-3-4, 4-5-6 clutch housing to move freely. When removing the retaining ring, make sure the 1-2-3-4, 4-5-6 clutch housing and the turbine shaft are restrained from moving .

  23. Remove the retaining ring (1) from the turbine shaft (3).
  24. Remove the 1-2-3-4, 4-5-6 clutch housing (2) from the rear of the turbine shaft.
  25. Remove 2 overlap seal rings (4) from the turbine shaft.

  26. Object Number: 1580980  Size: SH
  27. Position the 1-2-3-4, 4-5-6 clutch housing (5) on the base of J 24204-2 assembly  (6) so that the rear of the housing is facing up.
  28. Install J 47339-1 compressor  (4) onto the 1-2-3-4 clutch balance piston.
  29. Install the J 24204-2 assembly ball bearing (3) and washer (2) onto the shaft of J 24204-2 assembly .
  30. Install the J 24204-2 assembly wing nut (1) onto the shaft of J 24204-2 assembly  (6).

  31. Object Number: 1580982  Size: SH
  32. Compress the 1-2-3-4 clutch balance piston return spring assembly until the retaining ring (5) can be removed.
  33. Remove the retaining ring (5) from the groove in the 1-2-3-4 clutch housing.
  34. Remove the retaining ring (5).
  35. Remove all J tools.

  36. Object Number: 1580984  Size: SH
  37. Remove the 1-2-3-4 clutch balance piston (1) from the 1-2-3-4 clutch housing (4).
  38. Remove the 1-2-3-4 clutch piston return spring assembly (2) from the 1-2-3-4 clutch housing (4).
  39. Remove the 1-2-3-4 clutch piston (3) from the 1-2-3-4 clutch housing (4).

  40. Object Number: 1217058  Size: SH
  41. Remove the seal rings (1 and 2) from the 1-2-3-4 clutch piston (3).

  42. Object Number: 1580985  Size: SH
  43. Position the 1-2-3-4, 4-5-6 clutch housing (8) on the base of J 24204-2 assembly  (10) so that the rear of the housing is facing up.
  44. Align J 47339-2 protector J 47339-2 protector  (7) so that the bowl is facing down.
  45. Install J 47339-2 protector  (7) onto the shaft of J 24204-2 assembly and onto the inner hub of the 1-2-3-4, 4-5-6 clutch housing (9). Make sure the rim of J 47339-2 protector  (7) almost touches the retaining ring.
  46. Install the spring (5) of J 47339-1 compressor onto the shaft of J 24204-2 assembly .
  47. Install J 24204-2 assembly  (4) onto the shaft of J 24204-2 assembly .
  48. Install the J 24204-2 assembly ball bearing (3) and washer (2) onto the shaft of J 24204-2 assembly .
  49. Install the J 24204-2 assembly wing nut (1) onto the shaft of J 24204-2 assembly .
  50. Compress the 4-5-6 clutch piston return spring assembly until the retaining ring (6) can be removed.
  51. Remove the retaining ring (6) from the groove in the 1-2-3-4, 4-5-6 clutch housing inner hub and move the retaining ring over the top of J 47339-2 protector  (7).
  52. Remove all J tools from the 1-2-3-4, 4-5-6 clutch housing.
  53. Remove the retaining ring (6) from the 1-2-3-4, 4-5-6 clutch housing.

  54. Object Number: 1580986  Size: SH
  55. Remove the 1-2-3-4 clutch piston housing, the 4-5-6 piston return spring assembly, and the 4-5-6 clutch piston, as an assembly (1), from the 1-2-3-4, 4-5-6 clutch housing (2).

  56. Object Number: 1580988  Size: SH
  57. Position the 4-5-6 piston and 1-2-3-4 clutch housing horizontally on a work table.
  58. Hold the 4-5-6 piston and 1-2-3-4 clutch housing, and place J 43772 installer J 43772 installer against the 1-2-3-4 clutch housing.
  59. Using a rubber mallet, gently tap on J 43772 installer to remove the 1-2-3-4 clutch housing from the 4-5-6 clutch piston.

  60. Object Number: 1581151  Size: SH
  61. Remove the 4-5-6 clutch piston return springs (2) from the 4-5-6 clutch piston (3).

  62. Object Number: 1217054  Size: SH
  63. Remove the O-ring (1) from the inner hub of the 1-2-3-4, 4-5-6 clutch housing (2).

  64. Object Number: 1580991  Size: SH
  65. Remove the seal ring (1) from the 1-2-3-4 clutch housing (2).

  66. Object Number: 1580989  Size: SH
  67. Remove the piston seal rings (1 and 2) from the 4-5-6 clutch piston (3).