One problem related to steering gear box has been reported for the 2006 Ford F-350. The most recently reported issues are listed below.
The contact owns a 2006 Ford F-350. While driving 45 mph, the steering became loose and the vehicle sideswiped a dump truck. The driver was wearing a seat belt, but sustained bruises to his chest. The vehicle was previously taken to a repair shop for an alignment. The dealer stated that there was a hose leaking power steering fluid. After the hose was replaced, the failure continued. The vehicle was taken back to the repair shop after the crash and they stated that the steering gear box needed to be replaced. The vehicle has not been driven since the crash. The purchase date was unknown. The failure mileage was 35,000 and current mileage was 37,000.