F 350 4WD Pickup V8-7.3L DSL (1988)
Upper Valve Body Disassembled, (Diesel Engine)
4. Slide manual valve out of body.
5. Cover downshift valve port with a finger. Then, working from underside of body, remove downshift valve retainer. Remove spring and downshift
valve.
6. Apply hand pressure on pressure booster valve retaining plate and remove two screws. Slowly release pressure and remove plate, sleeve and
pressure booster valve. Remove two springs and main regulator valve from same bore.
7. Apply pressure on throttle booster valve retaining plate and remove two screws. Slowly release pressure and remove plate, throttle boost valve and
spring, and the manual low 2-1 scheduling valve and spring from the body.
8. Apply pressure on remaining valve retaining plate and remove eight screws.
9. Hold valve body so that plate is facing upward. Slowly release pressure and remove plate.