GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • DT 46496 (DW09940-53111) Gear, Bearing Installer
    • DT 46553 (DW220-010A) Transaxle Fixture

    Object Number: 1223625  Size: SH
  1. Remove the manual transaxle. Refer to Transmission Replacement .
  2. Position the manual transaxle to a transaxle stand using DT 46553  (1).

  3. Object Number: 1223672  Size: SH
  4. Remove the related clutch parts. Refer to Clutch, Pressure Plate, and Pilot Bearing Replacement .
  5. Remove the manual transaxle mounting bracket bolts (1).
  6. Remove the manual transaxle mounting bracket nut (3).
  7. Remove the manual transaxle mounting bracket (2).

  8. Object Number: 1223673  Size: SH
  9. Remove the backup light switch nut (1).
  10. Disconnect the backup light switch (4).
  11. Remove the speedometer driven gear assembly bolt (3).
  12. Remove the speedometer driven gear assembly (2).

  13. Object Number: 1223702  Size: SH
  14. Remove the select lever bolt (1).
  15. Remove the select lever (2).

  16. Object Number: 1223691  Size: SH
  17. Remove the gear shift control case assembly bolts (2).
  18. Remove the shift interlock bolt (1).
  19. Remove the gear shift control case assembly (3).
  20. Remove the gasket (4).

  21. Object Number: 1223694  Size: SH
  22. Remove the side cover bolts (1).
  23. Remove the side cover using a rubber hammer (2).
  24. Remove the sealant on the side cover and the transaxle case.

  25. Object Number: 1223679  Size: SH
  26. Remove the 5th gear shift fork plug (1).
  27. Remove the 5th gear shift fork guide ball using a magnet.
  28. Remove the 5th gear shift fork snap ring (2).
  29. Remove the 5th gear snap ring (3).
  30. Remove the 5th gear synchronizer plate.

  31. Object Number: 1223700  Size: SH
  32. Shift the shift fork to the 5th gear.
  33. Remove the fork pin using a pin punch and a hammer (1).
  34. Remove the 5th gear shift fork pin.

  35. Object Number: 1223689  Size: SH
  36. Pull and remove the input shaft 5th gear fork and the synchronizer hub assembly together (1).
  37. Remove the sleeve, key and spring from the synchronizer hub assembly.

  38. Object Number: 1223684  Size: SH
  39. Pull and remove the input shaft 5th gear, wave spring and synchronizer ring together (1).
  40. Remove the 5th gear bearing.

  41. Object Number: 1223677  Size: SH
  42. Shift yoke using a driver to engage the 1st gear and the 3rd gear or the 2nd gear and the 4th gear (2).
  43. Remove the caulking and the nut. (1)

  44. Object Number: 1223699  Size: SH
  45. Remove the countershaft 5th gear (1).

  46. Object Number: 1223687  Size: SH
  47. Remove the side cover plate screws (1).
  48. Remove the side cover plate (2).
  49. Remove the counter shaft bearing shim.

  50. Object Number: 1223682  Size: SH

    Important: There is a difference between the 5th reverse gear shift shaft spring and the others. Mark it to distinguish easily when installing.

  51. Remove the bolt and remove the 5th reverse gear shift shaft spring and ball (3).
  52. Remove the bolt and remove the 3rd-4th gear shift shaft spring and ball (1).
  53. Remove the bolt and remove the 1st and 2nd gear shift shaft spring and ball (2).

  54. Object Number: 1223676  Size: SH
  55. Remove the reverse idle gear shaft bolt.

  56. Object Number: 1223697  Size: SH
  57. Remove the bolts from the left side case (1).
  58. Remove the bolts from the right side of case (2).
  59. Remove the left side case by hitting with a rubber hammer lightly.
  60. Remove the sealant on the case.
  61. Remove the transaxle case - left.

  62. Object Number: 1223686  Size: SH
  63. Remove the bolts (1).
  64. Remove the reverse gear shift lever (2).

  65. Object Number: 1223680  Size: SH
  66. Push the reverse idle gear toward the inner case.
  67. Pulling shaft and remove the reverse idle gear and shaft (1).
  68. Remove the reverse idle gear from the shaft assembly.

  69. Object Number: 1223674  Size: SH
  70. Remove the 5th reverse gear shift shaft (1).

  71. Object Number: 1223738  Size: SH

    Important: Be careful not to damage the teeth of the counter shaft pinion and the differential ring gear.

  72. Remove the gear unit and the shift shaft assembly together (1).
  73. Remove the high and the low speed shift shaft assembly from the gear unit.

  74. Object Number: 1223693  Size: SH
  75. Insert a wooden stick into the lower side of the differential (2).
  76. Remove the differential assembly by moving it right and left (1).

  77. Object Number: 1223719  Size: SH
  78. Remove the bolt (1).
  79. Remove the oil gutter (2).
  80. Remove the bolts (5).
  81. Remove the oil plate (3).
  82. Remove the differential left side oil seal using a hammer and a copper chisel (4).
  83. Remove the related parts of the transaxle case - left side.

  84. Object Number: 1223709  Size: SH
  85. Remove the bolts (3).
  86. Remove the case cap - left side (4).
  87. Remove the case cap O-ring - left side (5).
  88. Remove the oil level plug, including the steel gasket (2).
  89. Remove the counter shaft bearing outer race using a hammer and DT 46496  (1).

  90. Object Number: 1223737  Size: SH
  91. Remove the related parts of the transaxle case - right side.
  92. Remove the input shaft oil seal using a screwdriver (2).
  93. Remove the differential left side oil seal using a hammer and a copper chisel (1).