Disassembly & Reassembly

Hold 2-4 servo piston and 2-4 servo piston retainer with nylon cloth and apply compressed air to oil hole in 2-4 servo piston retainer to remove piston from retainer. Push servo piston assembly out of piston retainer. Place servo piston stem end on wooden block. Depress servo piston spring retainer and remove "E" ring. Separate piston spring retainer, return spring, piston, thrust washer and piston stem. See Fig 1 .
Clean and inspect all components for excessive wear or damage. Inspect springs for deformation or damage. Reassemble components in reverse order of disassembly. Lubricate NEW seals with ATF.

Fig 1: Exploded View Of 2-4 Servo Assembly

Courtesy of FORD MOTOR CO.