The dipstick & tube for any regular Duratec engine is interchangeable.
It was revised once in 01 (or around there)
Now 6qts shows "full" on the dipstick.
I am using the revised dipstick from the 5/02 Taurus/Sable Engine I am running and using it with the 3M4Z pan and YL8Z pickup & windage tray.