LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Manual Transmission - M32) >> Repair Instructions - On Vehicle >> Input and Main Shaft Bearing Replacement >> Lower Main Shaft Bearing Replacement

Lower Main Shaft Bearing Replacement

WARNING: This page is about a different variant/trim than selected.
  1. Clean the lower main shaft (2) very accurate, clean the hollow shaft from the inside (arrow). Use a part cleaner (1) and compressed air.
    Fig 1: Identifying Lower Main Shaft
    GM4247006Courtesy of GENERAL MOTORS COMPANY
  2. Dry the lower main shaft.
  3. Cut in the bearing cage (2) of the lower main shaft outer bearing in several places on the top, using side cutting pliers (1).
    Fig 2: Identifying Bearing Cage
    GM4081144Courtesy of GENERAL MOTORS COMPANY
  4. Cut in the bearing cage (2) of the lower main shaft outer bearing in several places on the bottom, using side cutting pliers (1). If necessary, use a screwdriver (3) to lift the cage.
    Fig 3: Locating Bearing Cage
    GM4081145Courtesy of GENERAL MOTORS COMPANY
  5. Remove and DISCARD the cage.
  6. Remove and DISCARD all rollers.
  7. Install the DT-60000-10  remover (1) to the outer bearing inner ring of the lower main shaft, make sure of proper seat (arrow).
    Fig 4: Identifying DT-60000-10 Remover
    GM4081146Courtesy of GENERAL MOTORS COMPANY
  8. Tighten the 2 nuts of the DT-60000-10  remover.
  9. Support the outer bearing inner ring using the DT-60000-10  remover (1).
    Fig 5: Identifying DT-60000-10 Remover, Outer Bearing Inner Ring And CH-500-5 Arbor
    GM4081148Courtesy of GENERAL MOTORS COMPANY
  10. Remove the outer bearing inner ring (3) from the lower main shaft. Press out the lower main shaft, using the CH-500-5  arbor (2).
    NOTE: Hold the lower main shaft before pressing is finished, the lower main shaft must not fall to the floor.
  11. Remove the DT-60000-10  remover (1) from the outer bearing inner ring (2).
    Fig 6: Identifying DT-60000-10 Remover And Inner Bearing Inner Ring
    GM4081118Courtesy of GENERAL MOTORS COMPANY
  12. DISCARD the outer bearing inner ring.
  13. Remove the 6th gear gearwheel (1) from the lower main shaft.
    Fig 7: 6th Gearwheel
    GM2811292Courtesy of GENERAL MOTORS COMPANY
  14. Remove the 6th gear needle bearing (1) from the lower main shaft.
    Fig 8: 6th Gear Needle Bearing
    GM2811293Courtesy of GENERAL MOTORS COMPANY
  15. Remove the 6th gear synchronizer ring (1) from the 5th / 6th gear sleeve carrier.
    Fig 9: 6th Gear Synchronizer Ring
    GM2811294Courtesy of GENERAL MOTORS COMPANY
  16. Remove the 5th/6th gear selector sleeve (2) from the 5th/6th gear sleeve carrier.
    Fig 10: 5th/6th Gear Selector Sleeve And Spring Catches
    GM2811295Courtesy of GENERAL MOTORS COMPANY
  17. Remove the 3 spring catches (1, 3) from the sleeve carrier.
  18. Remove and DISCARD the 5th / 6th gear sleeve carrier retaining ring (1) from the upper main shaft, using the GE-396  pliers.
    Fig 11: 5th/6th Gear Selector Sleeve Retainer Ring
    GM2811296Courtesy of GENERAL MOTORS COMPANY
  19. Install the DT-60000-40  remover (1) to the 5th/6th gear sleeve carrier (4).
    Fig 12: 5th/6th Gear Selector Sleeve Carrier And Remover
    GM2811299Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the DT-60000-40  remover fits correctly.
    • DT-60000-40  remover must be positioned between 5th gear synchronizer ring (3) and 5th gear gearwheel (3).
    • Lift the 5th gear synchronizer ring to gain access.
  20. Support the sleeve carrier, using the DT-60000-40  remover.
    Fig 13: 5th/6th Gear Selector Sleeve Carrier And Removal Tool
    GM2811300Courtesy of GENERAL MOTORS COMPANY
  21. Remove the 5th/6th gear sleeve carrier (2) from the lower main shaft. Press out the lower main shaft.
    NOTE: Hold the lower main shaft before pressing is finished, the lower main shaft must not fall to the floor.
  22. Remove the 5th gear synchronizer ring (2) from the 5th / 6th gear sleeve carrier (1).
    Fig 14: 5th/6th Gear Sleeve Carrier
    GM2811301Courtesy of GENERAL MOTORS COMPANY
  23. Remove the 5th gear gearwheel (1) from the lower main shaft.
    Fig 15: Lower Main Shaft And 5th Gearwheel
    GM2811303Courtesy of GENERAL MOTORS COMPANY
  24. Remove the 5th gear needle bearing (1) from the lower main shaft.
    Fig 16: 5th Gear Needle Bearing
    GM2811305Courtesy of GENERAL MOTORS COMPANY
  25. Remove the support ring (1) and the 2 thrust washers (2) from the lower main shaft.
    Fig 17: Support Ring And Washer
    GM2811306Courtesy of GENERAL MOTORS COMPANY
  26. Remove the 2nd gear gearwheel (1) from the lower main shaft.
    Fig 18: 2nd Gear Gearwheel
    GM2813966Courtesy of GENERAL MOTORS COMPANY
  27. Remove the 2nd gear needle bearing (1) from the lower main shaft.
    Fig 19: 2nd Gear Needle Bearing
    GM2813967Courtesy of GENERAL MOTORS COMPANY
  28. Remove the 3 2nd gear synchronizer rings (1) from the 1st/2nd gear sleeve carrier (2).
    Fig 20: 2nd Gear Synchronizer Rings
    GM2813968Courtesy of GENERAL MOTORS COMPANY
  29. Remove the selector sleeve (2) from the 1st / 2nd gear sleeve carrier.
    Fig 21: Selector Sleeve
    GM2813970Courtesy of GENERAL MOTORS COMPANY
  30. Remove the 3 spring catches (1, 3) from the sleeve carrier.
  31. Remove and DISCARD the 1st/2nd gear sleeve carrier retaining ring (1) from the lower main shaft, using the GE-396  pliers.
    Fig 22: 1st/2nd Gear Sleeve Carrier Retaining Ring
    GM2813971Courtesy of GENERAL MOTORS COMPANY
  32. Support the 1st gear gearwheel (3), using the DT-60000-50  remover (1).
    Fig 23: 1st Gear Gearwheel
    GM2813972Courtesy of GENERAL MOTORS COMPANY
  33. Remove the 1st/2nd gear sleeve carrier (2) and the 1st gear gearwheel from the lower main shaft. Press out the lower main shaft.
    NOTE: Hold the lower main shaft before pressing is finished, the lower main shaft must not fall to the floor.
  34. Remove the 1st/2nd gear sleeve carrier (1), the 1st gear synchronizer rings (2) and the shim from the 1st gear gearwheel (3). DISCARD the 1st gear gearwheel.
    Fig 24: 1st/2nd Gear Sleeve Carrier
    GM2813973Courtesy of GENERAL MOTORS COMPANY
  35. Remove the 1st gear needle bearing (1) from the lower main shaft.
    Fig 25: 1st Gear Needle Bearing
    GM2813974Courtesy of GENERAL MOTORS COMPANY
  36. Support the lower main shaft, using the DT-46759  sleeve (2). Press the inner bearing (1) against the gearwheel of the differential gear drive.
    Fig 26: Supporting Upper Main Shaft, Using Sleeve
    GM2811246Courtesy of GENERAL MOTORS COMPANY
    NOTE: This step is only to unstuck the inner bearing retaining ring. See next step.
  37. Remove and DISCARD the inner bearing retaining ring (1) from the lower main shaft, using the GE-396  pliers.
    Fig 27: Retaining Ring Clamps
    GM2811247Courtesy of GENERAL MOTORS COMPANY
  38. Support the inner bearing (1), using the DT-60000-30  sleeve (2).
    Fig 28: Support Sleeve
    GM2813975Courtesy of GENERAL MOTORS COMPANY
  39. Remove the inner bearing from the lower main shaft. Press out the lower main shaft.
  40. DISCARD the inner bearing.
  41. Clean all components of the lower main shaft, using a part cleaner (1).
    Fig 29: Identifying Lower Main Shaft
    GM4247004Courtesy of GENERAL MOTORS COMPANY
  42. Clean the lower main shaft (2) very accurate, clean the hollow shaft especially from the inside (lower arrow), clean all oil bores (upper arrows). Use a part cleaner and compressed air.
    NOTE: Remaining residue may lead to transmission failure.
  43. Dry all components of the lower main shaft.
  44. Check all components of the lower main shaft for damage.
    NOTE: Damaged lower main shaft parts must not be installed.
  45. Support the NEW lower main shaft inner bearing (1), using the DT-46759  sleeve (2).
    Fig 30: Special Tool Support Sleeve
    GM2811251Courtesy of GENERAL MOTORS COMPANY
  46. Install the inner bearing to the lower main shaft. Press in the lower main shaft.
  47. Measure the fitting of the NEW inner bearing retaining ring (1). Try different thicknesses of retaining ring.
    Fig 31: Inner Bearing Retaining Ring
    GM2813976Courtesy of GENERAL MOTORS COMPANY
    • Retaining ring must not fit loosely into the groove.
    • To huge retaining ring can grind or block the 1st gear gearwheel.
    • Use the thickest retaining ring possible.
  48. Install the NEW inner bearing retaining ring (1) to the lower main shaft, using the GE-396  pliers.
    Fig 32: Retaining Ring Clamps
    GM2811247Courtesy of GENERAL MOTORS COMPANY
  49. Install the 1st gear needle bearing (1) to the lower main shaft.
    Fig 33: 1st Gear Needle Bearing
    GM2813974Courtesy of GENERAL MOTORS COMPANY
  50. Install NEW axial needle bearing (1) to the 1st gear gearwheel (2). Needles of the bearing facing towards the inner bearing of the lower main shaft. Glue the bearing with grease to the gearwheel.
    Fig 34: Axial Needle Bearing And 1st Gear Gearwheel
    GM2813977Courtesy of GENERAL MOTORS COMPANY
    NOTE: An axial needle bearing is not standard in every transmission. In course of the repair install axial needle bearing into every transmission.
  51. Position the 1st/2nd gear sleeve carrier (1) on the DT-46759  sleeve (2).
    Fig 35: 1st/2nd Gear Sleeve Carrier And Sleeve
    GM2813978Courtesy of GENERAL MOTORS COMPANY
  52. Position the shim (2) on the 1st/2nd gear sleeve carrier (1).
    Fig 36: Ensuring Proper Shim Fit
    GM2813979Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the shim fits correctly.
    • The borders of the shim must be facing towards the spring catches.
    • The shape of the shim covers the shape of the sleeve carrier (arrow) properly.
  53. Position the 1st gear synchronizer ring (1) on the 1st/2nd gear sleeve carrier.
    Fig 37: 1st Gear Synchronizer Ring
    GM2813980Courtesy of GENERAL MOTORS COMPANY
  54. Position the two 1st gear synchronizer rings (1) on the 1st/2nd gear sleeve carrier.
    Fig 38: Positioning Two 1st Gear Synchronizer Rings
    GM2813981Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the upper synchronizer ring fits into the sleeve carrier.

    Turn the upper synchronizer ring till it fits correctly into the sleeve carrier.

  55. Position the 1st gear gearwheel (2) and NEW axial needle bearing (1) on the 1st / 2nd gear sleeve carrier.
    Fig 39: 1st Gear Gearwheel
    GM2813982Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the gearwheel fits into the synchronizer ring.

    The middle synchronizer ring must fit into the gearwheel.

  56. Position the 1st gear needle bearing (1) into the 1st gear gearwheel.
    Fig 40: 1st Gear Needle Bearing
    GM2813984Courtesy of GENERAL MOTORS COMPANY
  57. Position the lower main shaft (1) along with the 1st gear needle bearing into the DT-46759  sleeve (2).
    Fig 41: Positioning Lower Main Shaft Into Sleeve
    GM2813986Courtesy of GENERAL MOTORS COMPANY
  58. Check that the axial needle bearing (1) fits correctly.
    Fig 42: Checking Axial Needle Bearing Fir
    GM2813987Courtesy of GENERAL MOTORS COMPANY
  59. Turn the 1st gear gearwheel (1). Turning the gearwheel secures that the synchronizer fits correctly into the gearwheel.
    Fig 43: Turning 1st Gear Gearwheel
    GM2813988Courtesy of GENERAL MOTORS COMPANY
  60. Support the 1st / 2nd gear sleeve carrier (1), using the DT-46759  sleeve (2).
    Fig 44: Supporting 1st Gear Gearwheel In Sleeve
    GM2813989Courtesy of GENERAL MOTORS COMPANY
  61. Install the 1st / 2nd gear sleeve carrier and the reverse gear gearwheel to the lower main shaft. Press in the lower main shaft.
  62. Check free rotating of the 1st gear gearwheel.
  63. Install the NEW 1st / 2nd gear sleeve carrier retaining ring (1) to the lower main shaft, using the GE-396  pliers.
    Fig 45: 1st/2nd Gear Sleeve Carrier Retaining Ring
    GM2813971Courtesy of GENERAL MOTORS COMPANY
  64. Install the 3 spring catches (1, 2) to the 1st / 2nd gear sleeve carrier.
    Fig 46: Spring Catches
    GM2813990Courtesy of GENERAL MOTORS COMPANY
  65. Install the selector sleeve (1) to the 1st / 2nd gear sleeve carrier
    Fig 47: Selector Sleeve
    GM2813993Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the position of the selector sleeve is correct.
    • The pits in the selector sleeve (arrow) must be installed in the position of the spring catches.
  66. Install the 3 synchronizer rings (1) to the 1st / 2nd gear sleeve carrier (2).
    Fig 48: Synchronizer Rings
    GM2813994Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the first synchronizer ring fits into the sleeve carrier (arrow).
  67. Install the 2nd gear needle bearing (1) to the lower main shaft.
    Fig 49: 2nd Gear Needle Bearing
    GM2813967Courtesy of GENERAL MOTORS COMPANY
  68. Install the 2nd gear gearwheel (1) to the lower main shaft.
    Fig 50: 2nd Gear Gearwheel
    GM2813966Courtesy of GENERAL MOTORS COMPANY
  69. Turn the 2nd gear gearwheel (1). Turning the gearwheel secures correct fitting of the gearwheel into the synchronizer ring.
    Fig 51: Turning 2nd Gear Gearwheel
    GM2813995Courtesy of GENERAL MOTORS COMPANY
  70. Install the 2 thrust washers (2) and the support ring (1) to the lower main shaft.
    Fig 52: Support Ring And Washer
    GM2811306Courtesy of GENERAL MOTORS COMPANY
  71. Install the 5th gear needle bearing (1) to the lower main shaft.
    Fig 53: 5th Gear Needle Bearing
    GM2811305Courtesy of GENERAL MOTORS COMPANY
  72. Install the 5th gear gearwheel (1) to the lower main shaft.
    Fig 54: Lower Main Shaft And 5th Gearwheel
    GM2811303Courtesy of GENERAL MOTORS COMPANY
  73. Install the 5th gear synchronizer ring (1) to lower main shaft.
    Fig 55: 5th Gear Synchronizer Ring
    GM2813996Courtesy of GENERAL MOTORS COMPANY
  74. Align the synchronizer ring to the opening in the sleeve carrier (arrows).
    Fig 56: Aligning Synchronizer Ring
    GM2813997Courtesy of GENERAL MOTORS COMPANY
  75. Install the 5th / 6th gear sleeve carrier (2) to the lower main shaft. Press on the sleeve carrier, using the DT-46759  sleeve (1)
    NOTE: Make sure that the position of the synchronizer ring is correct.
  76. Check free rotating of the 2nd gear gearwheel and 5th gear gearwheel.
  77. Install the NEW 5th / 6th gear sleeve carrier retaining ring (1) to the lower main shaft, using the GE-396  pliers.
    Fig 57: 5th/6th Gear Selector Sleeve Retainer Ring
    GM2811296Courtesy of GENERAL MOTORS COMPANY
  78. Install the 3 spring catches (1, 2) to the 5th / 6th gear sleeve carrier.
    Fig 58: Spring Catches
    GM2813998Courtesy of GENERAL MOTORS COMPANY
  79. Install the selector sleeve (1) to the 5th / 6th gear sleeve carrier.
    Fig 59: Ensuring Correct Selector Sleeve Position
    GM2813999Courtesy of GENERAL MOTORS COMPANY
    NOTE: Make sure that the position of the selector sleeve is correct.
    • The pits in the selector sleeve (arrow) must be installed in the position of the spring catches.
  80. Install the 6th gear synchronizer ring (1) to the 5th / 6th gear sleeve carrier.
    Fig 60: 6th Gear Synchronizer Ring
    GM2811294Courtesy of GENERAL MOTORS COMPANY
  81. Install the 6th gear needle bearing (1) to the lower main shaft.
    Fig 61: 6th Gear Needle Bearing
    GM2811293Courtesy of GENERAL MOTORS COMPANY
  82. Install the 6th gear gearwheel (1) to the lower main shaft.
    Fig 62: 6th Gearwheel
    GM2811292Courtesy of GENERAL MOTORS COMPANY
  83. Install the NEW lower main shaft bearing (2). Press on the bearing, using the DT-60000-60  installer (1) with function side "B".
    Fig 63: Identifying Lower Main Shaft Bearing And DT-60000-60 Installer
    GM4081149Courtesy of GENERAL MOTORS COMPANY
  84. Mark the NEW bearing cup of the lower main shaft bearing with III, in order to arrange the bearing cup later to the lower main shaft.
    Fig 64: Identifying Bearing Cup Of Lower Main Shaft Bearing
    GM4088080Courtesy of GENERAL MOTORS COMPANY
    NOTE: Use a permanent marker.
  85. Check the lower main shaft for damage.
    NOTE: Damaged lower main shaft must not be installed.
  86. Perform function check.
    Fig 65: Checking Component Function
    GM2814002Courtesy of GENERAL MOTORS COMPANY
    1. Check free rotating of all gearwheels.
    2. Shift all gears.
      • 5th / 6th gear selector sleeve (1)
      • 1st / 2nd gear selector sleeve (2)
    3. Shift lower main shaft into neutral position.
scientia non olet · About LEMON Manuals