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Home >> Chevrolet >> 2010 >> Camaro LS, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Manual Transmission - TREMEC 6-Speed) >> Repair Instructions - Off Vehicle >> Shimming Procedures >> Input Shaft, Mainshaft, and Countershaft

Input Shaft, Mainshaft, and Countershaft

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Input Shaft, Mainshaft & Countershaft
    GM2102308Courtesy of GENERAL MOTORS CORP.
  1. Rotate the clutch housing to the vertical position.
  2. Install the following assemblies in order:
    1. The input shaft (3)
    2. Align the 4th speed gear blocking ring to the input shaft.
    3. The mainshaft assembly (2)
    4. The countershaft (1), lifting up the mainshaft enough to install the countershaft.
    3. Fig 2: Identifying Transmission Case
    GM2102309Courtesy of GENERAL MOTORS CORP.
  3. Install the transmission case (1).
    4. Fig 3: Identifying Clutch Housing To Transmission Case Bolts
    GM2102310Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  4. Install the clutch housing to transmission case bolts (1) and tighten to 36 N.m (27 Ib ft).
    5. Fig 4: Measuring Input Shaft/Mainshaft End Play
    GM2102311Courtesy of GENERAL MOTORS CORP.
  5. Measure the input shaft/mainshaft end play using the following procedure:
    1. Place the tip of the J 8001:  indicator set (1) on the end of the mainshaft.
    2. Move the main shaft up and down.
    3. Record the measurement.
  6. Select a shim to achieve 0.0127-0.0889 mm (0.00049-0.00349 in) preload.
  7. Remove the J 8001:  indicator set.
    8. Fig 5: Measuring Countershaft End Play
    GM2102312Courtesy of GENERAL MOTORS CORP.
  8. Measure the countershaft end play using the following procedure:
    1. Place the tip of the J 8001:  indicator set (1) on the end of the countershaft.
    2. Move the countershaft up and down.
    3. Record the measurement.
  9. Select a shim to achieve 0.0127-0.0889 mm (0.00049-0.00349 in) preload.
  10. Remove the J 8001:  indicator set.
    11. Fig 6: Identifying Shift Lever Guide Bolts
    GM2102314Courtesy of GENERAL MOTORS CORP.
  11. Remove the shift lever guide bolts (1).
    12. Fig 7: Identifying Clutch Housing To Transmission Case Bolts
    GM2102310Courtesy of GENERAL MOTORS CORP.
  12. Remove the clutch housing to the transmission case bolts (1).
    13. Fig 8: Identifying Transmission Case
    GM2102309Courtesy of GENERAL MOTORS CORP.
  13. Remove the transmission case (1).
    14. Fig 9: Identifying Input Shaft, Mainshaft & Countershaft
    GM2102308Courtesy of GENERAL MOTORS CORP.
  14. Remove the following parts in order:
    1. The countershaft (1), lifting up the mainshaft (2) enough to remove the countershaft.
    2. The mainshaft assembly (2)
    3. The input shaft (3)
    15. Fig 10: Identifying Input Shaft Bearing Race & Shim
    GM2102316Courtesy of GENERAL MOTORS CORP.
  15. Remove the input shaft bearing race (1).
  16. Remove the input shaft bearing shim (2) and discard.
  17. Install the new input shaft bearing shim, and the original bearing race.
    18. Fig 11: Identifying Countershaft Bearing Race & Shim
    GM2102317Courtesy of GENERAL MOTORS CORP.
  18. Remove the countershaft bearing race (1).
  19. Remove the countershaft bearing shim (2) and discard.
  20. Install the new input shaft bearing shim, and the original bearing race.
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