NHTSA Complaint #10607807 — 2011 FORD F-350 SD

**2011 F350 SD 4X2. FIRST NOTICED THIS PHENOMENON AT 65MPH ON THE THRUWAY. WHEN HITTING CERTAIN ROUGH ROAD SURFACE, OR BUMPS, OR CONCAVITIES ETC., FRONT WHEELS "HOP" TO ONE SIDE, STEERING THE VEHICLE INTO THE SHOULDER, IF "HOPPING" TO THE RIGHT, OR INTO THE LEFT LANE OF TRAFFIC IF BUMP CAUSES A LEFT SIDE "HOP". CAN "HOP" EITHER WAY DEPENDENT UPON WHICH WHEEL STRIKES THE ROUGH SURFACE. IF BOTH WHEELS STRIKE THE ROUGH SURFACE THEN IT CAN GO EITHER WAY. THIS HAPPENS AT LOWER SPEEDS AS WELL. CAN HOP 12" OR MORE. I AM FRIGHTENED BY THIS VEHICLE AS I COULD EASILY STRIKE A CONCRETE BARRIER OR CONCRETE CURB OR A PEDESTRIAN OR ANOTHER VEHICLE. I HAVE DRIVEN OTHER MANUFACTURERS VEHICLES OF SIMILAR GVWR, OVER THE LAST 35 YEARS, AND THIS PROBLEM IS PARTICULAR TO THIS MAKE AND MODEL ONLY. I COMPARED WITH A 2015 FORD, SAME VEHICLE, AND THAT DOES THE SAME THING. FORD CLAIMS ITS NORMAL. FORD CLAIMS IT IS NORMAL UNTIL YOU "LOAD IT" TO CAPACITY, JUST OVER 2 TONS. "ONCE ITS LOADED, YOU WILL BE OK", SAYS FORD. SO THEIR THEORY STATES ITS OK TO BE AN UNSAFE VEHICLE WHILE YOU'RE TRAVELING TO PICK UP YOUR 4000LB LOAD, THEN ONCE YOU'RE LOADED ITS OK. SO IF YOU HAVE NO LOAD FOR 50% OF THE TIME THEN ITS OK TO HAVE A VEHICLE THAT IS UNSAFE 1/2 THE TIME YOU DRIVE IT! THIS IS OBVIOUSLY AN ENGINEERING PROBLEM AND I DOUBT FORD WILL ADMIT IT, BUT IT CERTAINLY IS UNSAFE AND SOMEBODY HAD BETTER LOOK INTO THIS BEFORE SOMEONE IS KILLED. **INCIDENTALLY, THIS IS A 2011 THAT I BOUGHT BRAND NEW IN 2014. IT SAT ON THE LOT FOR 3 YEARS. THIS HAS NO BEARING ON THE ISSUE HOWEVER SINCE THE 2015 DISPLAYS THE SAME TENDENCIES. *TR