TL* THE CONTACT OWNS A 1993 FREIGHTLINER FLD120 DUMP TRUCK EQUIPPED WITH DUNLOP DYNATRAC TIRE, SIZE 425/65/R22.5. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS THE VEHICLE STARTED TO JERK VIOLENTLY. AFTER INSPECTING THE VEHICLE, HE REALIZED THAT THE FRONT DRIVER'S SIDE TIRE BECAME FLAT FROM THE SIDEWALL AREA. THE TIRE WAS REPLACED. THE FAILURE ALSO OCCURRED ON THE FRONT PASSENGER'S SIDE TIRE SIX MONTHS LATER. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO WAS UNABLE TO DIAGNOSE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE TIRES WERE REPLACED. THE TIRE FAILURE MILEAGE WAS 8,000. THE VEHICLE FAILURE AND CURRENT MILEAGE WAS 600,000.