Overdrive Servo: Removal

WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM .

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: Removing 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: Removing Overdrive Servo Piston And Return Spring
Courtesy of FORD MOTOR CO.