Overdrive Servo: Removal

Remove the main control valve body. For additional information, refer to MAIN CONTROL VALVE BODY .

NOTE: If the tool is not available, extreme care must be taken. Spring pressure will force overdrive servo piston assembly out of case. Case bore damage may result from trying to pry on overdrive servo internal retaining ring.

Fig 1: Identifying Servo Piston Remover/Installer & Overdrive Servo Retaining Ring

Courtesy of FORD MOTOR CO.

Using the special tool, compress the servo spring to remove the overdrive servo retaining ring.
Remove the overdrive servo piston and return spring.

Fig 2: Identifying Overdrive Servo Piston & Return Spring
Courtesy of FORD MOTOR CO.