FIRESTONE, WILDERNESS AT, DOT VN73WMA3406 265/75RA6. ORIGINAL TIRES ON 2001, CHEVROLET, SILVERADO. WHILE DRIVING 45MPH RIGHT, REAR TIRE HAD TREAD SEPARATION. TWO WEEKS LATER, TREAD SEPARATED ON RIGHT FRONT. *AK WHEN THE RIGHT FRONT TIRE TREAD SEPARATED THE VEHICLE SKID ACROSS TO THE LEFT HAND DITCH LINE AND HIT THE BANK. THE VEHICLE WAS DAMAGED AND THE DRIVER WAS INJURED.*YH