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Home >> Dodge and Ram >> 2019 >> ProMaster 2500 >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission (Service Information) >> Assembly, UNDERDRIVE Compounder >> Disassembly
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Assembly, UNDERDRIVE Compounder: Disassembly

GC0122699Courtesy of CHRYSLER GROUP, LLC
  1. Remove the planetary gear set / output hub (1).
    GC0122700Courtesy of CHRYSLER GROUP, LLC
  2. Remove the helical shim (1).
    GC0122701Courtesy of CHRYSLER GROUP, LLC
    1 - NEEDLE BEARING
    5 - PLANETARY CARRIER
    9 - #2 NEEDLE BEARING
    2 - SUN GEAR
    6 - #2 SNAP RING
    10 - NEEDLE BEARING
    3 - HELICAL SHIM (SELECT)
    7 - #1 NEEDLE BEARING
    11 - OUTPUT HUB
    4 - #1 SNAP RING
    8 - ANNULUS GEAR
     
  3. Remove the snap ring (4) holding the planetary carrier (5).
  4. Remove the planetary carrier (5).
  5. Remove the snap ring (6) holding the annulus gear (8).
  6. Remove the needle bearing (7) on the front side of the annulus gear (8).
  7. Remove the annulus gear (8).
  8. Remove the needle bearing (9) on the back side of the annulus gear / on the front side of the output hub.
  9. Inspect the needle bearing in the output hub for any damage.
    GC0122702Courtesy of CHRYSLER GROUP, LLC
  10. Using two small picks (1), remove retaining clip from transfer/underdrive shaft (2).
    GC0122703Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    A NEW  retaining clip will be used during assembly.

  11. Discard the retaining clip (1) that was removed from the transfer/underdrive shaft (2).
  12. Remove the sun gear (2) from the shaft.
    GC0122704Courtesy of CHRYSLER GROUP, LLC
  13. Remove the split bearing (1) using a small pick (2).
    GC0122705Courtesy of CHRYSLER GROUP, LLC
  14. Remove the direct clutch (1) from the low clutch (2).
    GC0122706Courtesy of CHRYSLER GROUP, LLC
    1 - INTERNAL SNAP RING
    5 - RETURN COIL SPRING
    9 - # 2 THRUST BEARING
    2 - FRICTION (INNER SPLINE)
    6 - RETAINER
    10 - HUB
    3 - FRICTION (OUTER SPLINE)
    7 - PISTON
    11 - # 1 THRUST BEARING
    4 - RETAINER SNAP RING
    8 - BALANCE PISTON
    12 - REACTION PLATE (SELECTABLE)
  15. Remove the internal snap ring (1).
  16. Remove the selectable reaction plate (12).
  17. Remove the number one thrust bearing (11).
  18. Remove the hub (10).
  19. Remove the number two thrust bearing (9).
  20. Remove the inner and outer spline frictions (2, 3).
    GC0122707Courtesy of CHRYSLER GROUP, LLC
  21. Install spring compressor (special tool #8250, Compressor, Spring) (2) over the direct clutch balance piston (3) and place on a press (1).
  22. Compress spring to remove the snap ring (4) at the direct clutch balance piston.
    GC0122706Courtesy of CHRYSLER GROUP, LLC
    1 - INTERNAL SNAP RING
    5 - RETURN COIL SPRING
    9 - # 2 THRUST BEARING
    2 - FRICTION (INNER SPLINE)
    6 - RETAINER
    10 - HUB
    3 - FRICTION (OUTER SPLINE)
    7 - PISTON
    11 - # 1 THRUST BEARING
    4 - RETAINER SNAP RING
    8 - BALANCE PISTON
    12 - REACTION PLATE (SELECTABLE)
  23. Remove the direct clutch balance piston (8).
  24. Remove the return coil spring (5).
  25. Remove the direct clutch piston (7) from the retainer (6).
    GC0122708Courtesy of CHRYSLER GROUP, LLC
  26. Remove the needle bearing (1) from the transfer shaft.
    GC0122709Courtesy of CHRYSLER GROUP, LLC
  27. Remove the overrunning clutch from the low clutch (1).
    GC0122711Courtesy of CHRYSLER GROUP, LLC
  28. Remove the transfer shaft (1) from the low clutch (2).
  29. Remove the bearing retainer screws.
    GC0122712Courtesy of CHRYSLER GROUP, LLC
  30. Using Bearing Splitter (special tool #1130, Splitter, Bearing/Gear) (2) and a press (3) remove the underdrive compounder bearing.
    GC0122713Courtesy of CHRYSLER GROUP, LLC
    1 - SNAP RING (SELECTABLE)
    6 - RETURN SPRING
    2 - CLUTCH HUB
    7 - RETAINER
    3 - REACTION PLATE
    8 - SEALS
    4 - FRICTION DISC
    9 - PISTON
    5 - SEPARATOR PLATE
    10 - SNAP RING
  31. Remove the snap ring (10).
  32. Remove the reaction plate (3)
  33. Remove the friction disc's (4) and the separator plates (5).
    GC0122714Courtesy of CHRYSLER GROUP, LLC
  34. Install spring compressor (special tool #9725, Compressor, Spring) (1) on return spring (3) and slightly compress.
  35. Remove the snap ring (4) from low clutch retainer (2).
    GC0122715Courtesy of CHRYSLER GROUP, LLC
  36. Release pressure on the press, then remove spring compressor (special tool #9725, Compressor, Spring) and the return spring (1).
    GC0122716Courtesy of CHRYSLER GROUP, LLC
  37. Remove the low clutch piston (1) from low clutch retainer (2). Low air pressure may be applied to low clutch retainer port (3) to move piston out of the bore.
    GC0122717Courtesy of CHRYSLER GROUP, LLC
  38. Remove the seal rings (1) from the low clutch retainer (2).
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