THE GOODYEAR WRANGLERS RTS TIRES ARE ORIGINAL EQUIPMENT ON THE FORD EXPEDITION,THEY HAVE A TENDANCY TO HYDROPLANE ON WET ROADS. EXPIERENCED MAJOR LOSS OF CONTROL IN A RAINSTORM TRAVELING AT 25MPH ON A 45MPH ROAD. ENTERED A SLIGHT CURVE, NO STEERING RESPONSE VEHICLE PROCEED TO HEAD STRAIGHT UNTIL COMMING IN CONTACT WITH A CONCRETE BICYCLE PATH,IN WHICH FORCED THE VEHICEL TO TURN ABRUBTLY, HYDROPLANING AGAIN GOING ACROSS TWO LANES UNTIL DRIVER REGAINED CONTROL. TIRES SHOW NO MAJOR WEAR, NO UNEVEN TREAD OR ANY DEFECTS. THESE STOCK GOODYEAR TIRES ALSO PRODUCE MAJOR VIBRATIONS AT HIGHWAY SPEEDS.FORD SHOULD NOT USE THESE TIRES AS ORIGINAL EQUIPMENT TIRES.( DOT NUMBER: TIRE SIZE: 255-70-16 )