2010 F250 repeatably experienced violent shaking of the front wheels and steering at highway speeds (commonly referred to as ‘death wobble’). This shaking has been so violent that I had no control of the vehicle steering and had to abruptly brake and slow to a near stop in 75 mph traffic! Vehicle has 71K miles and has been very well maintained and garage kept (single owner). Substantial repairs have been made to replace steering dampener, track bar, drag link, and steering gear. Technician explained that all of these parts were severely damaged from the death wobble.