The contact owns a 2012 Ford F-350. The contact stated while driving at approximately 65 MPH, the contact rolled over a bump and the vehicle started to shudder and sway to the left and right violently. The contact slowed down to 20 MPH and regained control of the vehicle. The contact stated there were no warning lights illuminated. The contact stated that the failure had occurred two years prior. The contact had taken the vehicle to a local dealer who installed dampers and a track bar on the front end. The contact had not yet taken the vehicle to a local dealer or independent mechanic following the failure. The vehicle was not diagnosed and was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 200,000.