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Overdrive Clutch Measurement

The overdrive clutch should be measured before and after it is disassembled or assembled. The end play can be adjusted by installing a thicker or thinner snap ring holding the reaction plate into the overdrive clutch retainer.

Fig 1: Overdrive Clutch & Special Tool #8285
GC0154895Courtesy of CHRYSLER GROUP, LLC
  1. Place the overdrive clutch (1) on tool (special tool #8285, Compressor, Spring) 8285.
  2. Attach a magnetic base dial indicator stand (special tool #C-3339A, Set, Dial Indicator) (2) to the overdrive clutch retainer (1).
  3. Attach a (special tool #C-3339A, Set, Dial Indicator) dial indicator (3) to the stand (2) with the dial indicator plunger against the top of the overdrive clutch (1) reaction plate (1).
    Fig 2: Special Tool #C-3339A
    GC0140398Courtesy of CHRYSLER GROUP, LLC
    Fig 3: Reaction Plate & Dial Indicator
    GC0154942Courtesy of CHRYSLER GROUP, LLC
  4. Press downward on the reaction plate (1) and "zero" the dial indicator (3).
    Fig 4: Reaction Plate, Pair Of Screw Drivers & Dial Indicator
    GC0154991Courtesy of CHRYSLER GROUP, LLC
  5. Lift upward on the reaction plate (1) with a pair of screw drivers (2).
  6. Record the highest reading on the dial indicator (3). This is the amount of free travel within the overdrive clutch. Refer to SPECIFICATIONS .
  7. If the overdrive clutch is not within specifications, install a thicker or thinner snap ring to hold the reaction plate in the clutch retainer.