F 350 4WD Super Duty V10-6.8L VIN Z CNG (2003)
6. Remove the torque converter drain plug and discard.
All vehicles
7. Allow the fluid to drain.
8. NOTE: If equipped with a radiator in-tank transmission fluid cooler the cooler will need to be flushed.
Only flush the cooler tubes, in-tank fluid cooler and the bypass valve if carrying out a transmission overhaul. Vehicles equipped with auxiliary
OTA coolers cannot be flushed completely. Only new coolers should be installed.
Refill
9. After the torque converter has drained, install a new drain plug.
10. Install the torque converter drain plug cover.
7.3L Diesel
11. Install a new torque converter drain plug.