One problem related to steering gear box has been reported for the 2008 Ford F-250. The most recently reported issues are listed below.
The contact owns a 2008 Ford F-250 suprerduty diesel. The contact stated that the vehicle became very difficult to steer while driving 30 mph. The contact inspected the vehicle and thought that the failure invovled the steering box and shaft. The vehicle had not been taken to the to the dealer, but the manufacturer had been notified. The failure mileage was 36,000. Updated 6/4/12.