I WAS DRIVING ON I215 IN SALT LAKE CITY UTAH AT 65MPH WHEN I HIT A SMALL BUMP IN THE ROAD AND THE FRONT END OF THE TRUCK BEGAN SHAKING VIOLENTLY AND I COULD NOT REGAIN CONTROL BEFORE IT RAN ME OFF THE ROAD INTO A DITCH NARROWLY MISSING A CONCRETE BARRIER AND ANOTHER VEHICLE. THERE WAS NO IMPACT, HOWEVER I AM NOT SURE HOW I KEPT IT FROM ROLLING THE TRUCK. THIS HAS HAPPENED TO ME IN THREE OTHER FORD TRUCKS RANGING FROM 2006 TO 2008 THAT I USED TO DRIVE AT WORK. AND NOW MY PERSONAL 2008 F350. I HEAR THAT THEY CALL IT THE DEATH WOBBLE. I WANT TO KNOW WHY THERE IS NO RECALL FOR THIS. *TR