TIRE TREAD BLEW APART AFTER DRIVING 100 MILES IN 80 DEGREE WEATHER CAUSING TRUCK TO VEAR OFF THE HIGHWAY. SHREADED TIRE TREAD WHICH JUST SEPERATED FROM THE REST OF THE TIRE AND BEAT AGAINST THE FENDER CAUSING DAMAGE TO THE VEHICLE IN EXCESS OF $1000 . I CONTACTED (2) SEPERATE FIRESTONE DEALERS AND WAS TOLD THERE WAS NOTHING THEY COULD DO, NEITHER FACILITY OFFERED ANY INFORMATION ABOUT THE DEFECT IN THESE TIRES AND IN FACT IMPLIED IT WAS MY FAULT. I SUFFERED DAMAGE TO MY RIGHT ARM, LEG AND FOREHEAD AS A RESULT OF THESE DEFECTIVE TIRES.( DOT NUMBER: TIRE SIZE: 30X9.50R15 )