Item 1: Retaining Ring Assembly Note

WARNING: Air pressure must not exceed 138 kPa (20 psi). Wear safety glasses when using compressed air. Make sure the cylinder is facing down as shown. Failure to follow these instructions may result in personal injury.

Air check the forward clutch piston.
1. Place the forward clutch cylinder with forward clutch piston facing down.
2. Install the transmission center support on the forward clutch cylinder.
3. Apply air pressure to the left port of the center support.
  
  Fig 1: Identifying Left Port Of Center Support
  Courtesy of FORD MOTOR CO.
Check forward clutch disc pack free play.
1. Press down on forward clutch disc pack.
2. Using a feeler gauge, check the gap between the forward clutch retaining ring and the forward clutch pressure plate.
  - If the clearance is not within specifications, install the correct size retaining ring.
    
    Fig 2: Forward Clutch Disc Pack Specifications Table
    Courtesy of FORD MOTOR CO.
    
    Fig 3: Measuring Gap Between Forward Clutch Retaining Ring And Forward Clutch Pressure Plate
    Courtesy of FORD MOTOR CO.