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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> 2-3-4-6-8 and 4-5-6-7-8 Reverse Clutch Disassemble >> Single Use Fasteners and Components

Single Use Fasteners and Components

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

Equivalent regional tools:Special Tools

  1. GM3681733Courtesy of GENERAL MOTORS COMPANY

    2-3-4-6-8 Clutch Backing Plate Retaining Ring (1) - Remove

  2. 2-3-4-6-8 Clutch Backing Plate (2) - Remove
  3. 2-3-4-6-8 Clutch Plate - Friction (3) - Remove [5x ]
  4. 2-3-4-6-8 Clutch Plate (4) - Remove [4x]
  5. 2-3-4-6-8 Clutch Apply Plate (5) - Remove
  6. 2-3-4-6-8 Clutch Plate - Waved (6) - Remove
  7. 2-3-4-6-8 Clutch Apply Ring (7) - Remove
  8. GM3681736Courtesy of GENERAL MOTORS COMPANY

    4-5-6-7-8-Reverse Clutch Backing Plate Retaining Ring (1) - Remove

  9. 4-5-6-7-8-Reverse Clutch Backing Plate (2) - Remove
  10. 4-5-6-7-8-Reverse Clutch Plate - Friction (3) - Remove [4x]
  11. 4-5-6-7-8-Reverse Clutch Plate (4) - Remove [4x]
  12. 4-5-6-7-8-Reverse Clutch Plate - Waved (5) - Remove
  13. GM3681737Courtesy of GENERAL MOTORS COMPANY

    Assemble special tools as shown to remove the retaining ring.

  14. 4-5-6-7-8-Reverse Clutch Piston Dam Retaining Ring (1) - Remove and DISCARD
  15. Use the DT-50905  clutch air travel adapter (2) with compressed air to remove the 4-5-6-7-8-Reverse Clutch Piston (6) and 4-5-6-7-8-Reverse Clutch Piston Dam (3) as an assembly.
  16. 4-5-6-7-8-Reverse Clutch Piston Dam (3) - Remove
    17. CAUTION:

    Refer to Seal Reuse Caution .

  17. 4-5-6-7-8-Reverse Clutch Piston Seal (4) - Remove and DISCARD
    18. NOTE:

    Observe the orientation of the spring for assembly.

  18. 4-5-6-7-8-Reverse Clutch Piston Return Spring (5) - Remove
  19. 4-5-6-7-8-Reverse Clutch Piston (6)
    20. NOTE:

    Observe the orientation of the stop for assembly

  20. 4-5-6-7-8-Reverse Clutch Piston Stop (7) - Remove
  21. 4-5-6-7-8-Reverse Clutch Piston Seal (8) - Remove and DISCARD
  22. GM3681738Courtesy of GENERAL MOTORS COMPANY

    Assemble special tools as shown to remove the retaining ring.

  23. 2-3-4-6-8 Clutch Piston Dam Retaining Ring (1) - Remove and DISCARD
  24. Use the DT-50905  clutch air travel adapter (2) with compressed air to remove the 2-3-4-6-8 Clutch Piston (7) and 2-3-4-6-8 Clutch Piston Dam (3) as an assembly.
  25. 2-3-4-6-8 Clutch Piston Dam (3) - Remove
    26. CAUTION:

    Refer to Seal Reuse Caution .

  26. 2-3-4-6-8 Clutch Piston Seal- Outer (4) - Remove and DISCARD
  27. 2-3-4-6-8 Clutch Piston Seal- Inner (5) - Remove and DISCARD
    28. NOTE:

    Observe the orientation of the spring for assembly.

  28. 2-3-4-6-8 Clutch Piston Return Spring (6) - Remove
  29. 2-3-4-6-8 Clutch Piston (7) - Remove
  30. 2-3-4-6-8 Clutch Piston Seal (8) - Remove and DISCARD
  31. GM3681740Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Seal Reuse Caution .

    4-5-6-7-8-Reverse Clutch Piston Seal (1) - Remove and DISCARD

  32. 4-5-6-7-8-Reverse Clutch Piston Stop Seal (2) - Remove and DISCARD
  33. 2-3-4-6-8 Clutch Piston Dam Seal (3) - Remove and DISCARD [2x]
  34. GM3681742Courtesy of GENERAL MOTORS COMPANY

    Use DT-45124  Removal Bridge (1) & DT-47865  Bearing Remover (2) to remove bearing.

  35. 2-3-4-6-8 and 4-5-6-7-8-Reverse Clutch Housing Bearing (3) - Remove
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