72000 kms yes 72k, truck was only used in summer for moving 100 gallons of water every day, problem, hard shift into 4/5. Under half to full throttle.... normal driving Everett is great but when you give her some, she’ll go into 5 really hard, back out then back into 5 hard again all within one second. Feels like someone side stepping the clutch then jumping the clutch then side steeping again as fast as possible, toke it in for service, tranny shop says they have seen this before but rebuilding and replacing won’t fix problem, it’s with the ECU. They have rebuilt one before same problem before and after, they have also put a ford replacement one in before problem stayed... his was in the past of course not on my truck, nice that their honest but what do I do now, I’m selling the truck but I can’t sleep knowing I sold a truck with a transmission problem,???? And help would be great, fluid not burnt, no metal in pan, shift great under normal driving, fluid level checked as well