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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Manual Transmission - TREMEC 6-Speed (Mg9) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Main Shaft and Input Shaft Disassemble >> Special Tools

Special Tools

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Equivalent regional tools: Special Tools

    NOTE:

    Measure the 4th speed gear synchronizer wear gap before disassembling the main shaft.

  1. Install the input shaft in the clutch housing.
  2. Install the main shaft on the input shaft.
  3. Using a feeler gauge, measure the gap between the 4th speed gear blocking ring and the 4th speed gear.
  4. Replace the 4th speed gear friction cone and blocking ring when the gap is less than 1.27 mm (0.050 in).
  5. GM3213042Courtesy of GENERAL MOTORS COMPANY

    6th gear (1) - Remove

  6. Main Shaft Center Bearing (2) - Remove
    7. CAUTION:

    Do not overtighten the J 36513 split plate past the gear teeth or damage to gear may occur.

  7. Using the J-36513  Split Plate (7) and J-39442  Press Adapter (8), remove the 1st gear (3).
  8. 1st Gear Bearing (4) - Remove
  9. 1st Gear Thrust Washer (5) - Remove
  10. 1st and 2nd Gear Synchronizer Retaining Ring (6) - Remove
  11. GM5896100Courtesy of GENERAL MOTORS COMPANY

    1st Gear Synchronizer Inner Cone (1) - Remove

  12. 1st Gear Synchronizer Outer Cone (2) - Remove
  13. 1st Gear Blocking Ring (3) - Remove
  14. GM3213052Courtesy of GENERAL MOTORS COMPANY

    1st and 2nd Gear Synchronizer (1) - Remove

  15. 2nd Gear Blocking Ring (2) - Remove
  16. 2nd Gear Synchronizer Outer Cone (3) - Remove
  17. 2nd Gear Synchronizer Inner Cone (4) - Remove
  18. Using the J-36513  Split Plate (8) and J-39442  Press Adapter (9), remove the 2nd gear (5).
  19. 2nd Gear Bearing Spacer (6) - Remove
  20. 2nd Gear Bearing (7) - Remove
  21. GM3213055Courtesy of GENERAL MOTORS COMPANY

    3rd and 4th Gear Synchronizer Retaining Ring (1) - Remove

  22. 3rd and 4th Gear Synchronizer (2) - Remove
  23. 3rd Gear Blocking Ring (3) - Remove
  24. 3rd Gear Synchronizer Outer Cone (4) - Remove
  25. 3rd Gear Synchronizer Inner Cone (5) - Remove
  26. Using the J-39473  Mainshaft Bearing Installer/Adapter (9), remove the 3rd gear (6).
  27. 3rd Gear Bearing Spacer (7) - Remove
  28. 3rd Gear Bearing (8) - Remove
  29. GM5896064Courtesy of GENERAL MOTORS COMPANY

    Main Shaft Front Bearing Roller Thrust Washer (1) - Remove

  30. Main Shaft Front Bearing (2) - Remove
  31. Main Shaft Bearing (3) - Remove
  32. GM5896066Courtesy of GENERAL MOTORS COMPANY

    Using the DT - 22912-B  Rear Pinion and Axle Bearing Remover (2) and a press, remove the input shaft bearing (1).

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