NHTSA Complaint #11515264 — 2018 FORD F-250

Driving truck and pulling horse trailer at 70-75 mph and crossed a bridge on interstate highway which caused a bump and then front end of truck began to shake very hard and the truck pulled hard to the left. Managed to get it under control and moved to side of road and called dealership...who advised to continue trip and keep speed under 55. No further problems on that trip while staying under 55 mph. Dealer put a new steering dampener on Jan. 2, 2023. No further issues until Mar. 31, 2023 - while pulling a trailer and UTV - again hit a bump on interstate at about 75-80 mph and the severe wobble happened again. Truck pulled left but I braked immediately and was able to pull over and it stopped around 30 mph so I resumed trip. 20 minutes later, while driving closer to 65 mph, I went over a bridge on the interstate and the wobble started again suddenly as we exited the bridge. This time the shaking was so violent it took all of my strength to control it as it as the truck surged left and almost hit another car. The vehicles around me all braked hard to avoid me while I was braking hard to keep from hitting the car to my left. It was by far the most violent of the three incidents. I did not tow the trailer home from this trip and instead drove along at 55-63 mph. Twice I got the truck up to around 70 and you could feel vibration in both the steering wheel and the body floorboard - especially the right side. As long as I stayed below 55 it seemed to operate ok. This truck is primarily a tow vehicle for my wife and her horse trailer. I can say with certainty that if she were driving and the 'death wobble' happened to her, there is no way she could have held that truck straight. THIS IS A SERIOUS PROBLEM!!! Now that I have looked and read online I cannot believe it hasn't been formally addressed yet by Ford. Its back at the dealer and we'll see what bandaid they come up with next. THIS IS A REALLY SERIOUS PROBLEM THAT NEEDS ATTENTION!!