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Overdrive Clutch Assembly: Assembly

  1. Install the 3 new scarf cut seals and the roller bearing.
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  2. Install a new outer O-ring seal on the O/D  clutch balance piston.
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  3. Install 2 new inner O-ring seals on the O/D  clutch apply piston.
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  4. Lubricate all the O-ring seals with clean transmission fluid. Install the O/D  clutch apply piston into the drum with the O-ring seals and the 3 pads facing down toward the drum.
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  5. NOTE: The fingers on the return spring are facing down toward the piston.

    Install the O/D  clutch return spring.

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  6. NOTE: The cone shape of the balance piston must face up when installed correctly.

    Lubricate all the O-ring seals with clean transmission fluid. Install the O/D  clutch balance piston.

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  7. Using the Spring Washer Compressor, install a new O/D  clutch balance piston retaining ring.
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  8. Soak the new O/D  clutch plates in clean transmission fluid.
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  9. NOTE: Friction and steel plate quantity will vary based on engine displacement. For additional information, refer to the CLUTCH PLATE QUANTITY CHART  in the Specifications portion of this article.

    Install the new O/D  clutch plates, starting with a steel plate and alternating between friction and steel plates, and ending with the pressure plate on the top.

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  10. Install the O/D  clutch pack snap ring.
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  11. NOTE: All O/D  clutch plates, friction and steel are of a wave-type design.

    Install the O/D  clutch assembly into the Clutch End Play Gauge and install the Dial Indicator Gauge with Holding Fixture and position the plunger so it fits into the opening of the snap ring.

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  12. With the Dial Indicator Gauge set at zero, lift up on the steel pressure plate so it is against the select fit snap ring. Record this reading as reading A.
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  13. Rotate the O/D  clutch assembly 180 degrees from the opening of the snap ring, take a second reading and record this reading as reading B.
    Description Reading
    Reading A  
    Reading B  
    Add reading A to reading B for a total end clearance  
    Divide the total reading by 2 for an average end clearance  
  14. NOTE: If the final measurement is not within specification, install a new snap ring until the correct specification is achieved.
    • 0.5-0.9 mm (0.019-0.035 in)

      If the free pack end clearance between the bottom of the snap ring and the top of the pressure plate is high, remeasure using a thicker select fit snap ring. If the free pack end clearance between the bottom of the snap ring and the top of the pressure plate is low, remeasure using a thinner select fit snap ring.

  15. NOTE: Inspect and install new thrust bearings as required.

    Install the T3 thrust bearing.

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