In 2002, we have the tail-end of the 4R100 generation. Ford took the venerable C6, a three-speed, added an overdrive that engaged electrically, and called it E4OD. Then in 1997 they added an all-electronic control system (solenoid-operated valve body) and called it 4R100.
C6 was a bulletproof icon. E4OD had lots of failures, at least at first. 4R100 seems to have been good.* Same for 5R110/TorqShift. Very surprised the low-mileage one had a problem. 'Specially Phil's - he seems to take care of things.
*At least behind gas engines. The annoying downshift they do on slight grades take it from 4th-locked to 3rd-locked. That annoyance means the torque converter doesn't run around unlocked. Behind diesels they apparently do, and overheat. This is from a credible third party source. I didn't dig it out myself...