WHILE DRIVING APPROXIMATELY 55MPH, HEARD A THUMP, THUMP NOISE & THEN VEHICLE GAVE A JERK. STOPPED VEHICLE & CHECKED TIRES. NOTICED LEFT REAR TIRE HAD BLOWN & TREAD HAD SEPARATED FROM TIRE. THEY WERE BRIDGESTONE DUELER AT 31X10.50R15. THEY WERE REPLACEMENT TIRES, AND NOT THE ORIGINAL TIRES WHICH BLEW OUT AT 6,000 MILES. CHANGED TIRE & DROVE TO TIRE SHOP. HAD IT REPLACED WITH A DIFFERENT TYPE OF TIRE. DO NOT HAVE TIRE. *AK TWO DAYS LATER RIGHT REAR TIRE BLEW OUT AND THE VEHICLE TURNED OVER CAUSING THE TRAILER AND THE VEHICLE TO WRECK. THE DRIVER AND THE PASSENGERS WERE INJURED. *YH