NHTSA Complaint #10236933 — 2006 FORD F-250 SD

I HAVE A 2006 FORD F250 WHICH WAS PURCHASED NEW. I HAVE MADE NO MODIFICATIONS TO THIS TRUCK SINCE PURCHASING IT ON12/07/2006. ON THREE DIFFERENT OCCASSIONS MY TRUCK HAS BEGUN TO SHAKE VIOLENTLY WHILE TRAVELING DOWN I95 SOUTH IN MARYLAND TO VISIT FAMILY. THE FIRST TWO TIMES THIS HAPPENED AFTER MAKING SURE I HAD CONTROL OF THE TRUCK I PUT IT IN NEATRAL AND SHUT DOWN THE IGNITION. THE VIOLENT SHAKING STOPPED AND ALL SEEMED FINE. I HAD IT CHECKED AFTER THE SECOND TIME AND NOTHING WAS FOUND TO BE WRONG. THE FIRST TIME THAT THIS ALL HAPPENED THERE WAS NO BUMP IN THE ROAD OR ANYTHING, THE SECOND TIME I CROSSED A SMALL BRIDGE/OVERPASS AND AS I WAS COMING OFF THE VIOLENT SHAKING STARTED AND MY 5 AND 7 YEAR OLDS THOUGHT I WAS PLAYING, I WAS SCARED BUT HELD ON AND TOLD THEM TO DO THE SAME. I SHUT THE TRUCK DOWN LIKE THE FIRST TIME AND IT WENT AWAY AGAIN. MIND YOU NOW THIS IS ALL HAPPENING WHILE DRIVING DOWN INTERSTATE 95 AT ABOUT 70 MPH, STAYING WITH THE FLOW OF TRAFFIC, I HAVE TO LOOSE MY POWER STEERING AND POWER BRAKES WHILE THE TRUCK IS SHUT DOWN ROLLING 70 MPH. IS THIS NOT A SAFETY ISSUE, CAN ANYONE SAY RECALL BEFORE PEOPLE DIE. I TOOK THE TRUCK TO MY LOCAL FORD WHEN I GOT BACK TO HAVE IT CHECKED OUT. THEY CHECKED, FOUND NOTHING AND WAS TOLD TO BRING IT BACK IF IT HAPPENED AGAIN OR IF I COULD MAKE IT HAPPEN. MOST RECENTLY NOW IT HAPPENED AGAIN(3RD TIME) ON 8/2/2008, ONCE AGAIN ON I95. MY WIFE AND I WERE DRIVING AS ALL TIMES BEFORE, WENT OVER SMALL BRIDGE/OVERPASS AND THE "DEATH WOBBLE" STARTED AGAIN. I KEPT MY FOOT ON THE ACCELERATOR AND BOTH HANDS ON THE WHEEL TO SEE WHAT WAS GOING TO HAPPEN(MECHANIC AND I DISCUSSED DOING THIS TO SEE IF A CODE, CHECK ENGINE LIGHT OR SOMETHING BROKE. AFTER ABOUT 20-30 SECONDS OF RIDING THIS THING OUT IT ALL STOPPED AND WENT AWAY AS QUICKLY AND WITH OUT WARNING LIKE IT STARTS. I AM CURRENTLY TRYING TO GET ANYONE FROM FORD TO ACKNOWLEDGE THIS PROBLEM EXSISTS, WITH LITTLE LUCK. *TR