1990 TOYOTA PICKUP Tirestreadbelt Problems

I HAVE A 1990 TOYOTA PICKUP WITH A SET OF FIRESTONE AFFINITY TIRES IN SIZE 205/70R14. YESTERDAY WHILE ON THE WAY TO WORK ON I85 THE FRONT OF THE TRUCK BEGAN VIBRATING HORRIBLY AS IF IT HAD A FLAT TIRE. I PULLED OVER AND INSPECTED THE TIRES AND THEY ALL STILL HAD AIR IN THEM. I CONTINUED ON MY WAY BUT THE VIBRATION CONTINUED. AT THIS POINT I THOUGHT I HAD THROWN A WHEEL WEIGHT AND THE TIRE WAS OUT OF BALANCE. ABOUT 1 MILE DOWN THE ROAD THERE WAS A LARGE POPPING NOISE FROM THE LEFT FRONT TIRE. LUCKILY, I WAS ABLE TO PULL OVER INTO A GAS STATION AND WHEN I DID I FOUND THAT THE TIRE HAD A HUGE SECTION OF TREAD THAT HAD SEPARATED FROM THE TIRE CARCAS, PROBABLY 25% AROUND THE TIRE. THIS IS NOT SOMETHING I HAVE EVER HAD HAPPEN WITH ANOTHER TIRE IN...

CONSUMER WAS TRAVELING ABOUT 55MPH ON HIGHWAY AND HEARD A THUMPING NOISE. HE WAS ABLE TO PULL OVER TO SIDE OF SHOULDERS, AND NOTICED THAT LEFT REAR TIRE HAD SEPARATED FROM VEHICLE . TIRE WAS A B.F.GOODRICH, P21565R15, DOT BEVFNX71308. THERE WERE NO INJURIES.*AK

PE00 O20; CONSUMERWAS TRAVELING 45MPH ON THE HIGHWAY AND RIGHT REAR TIRE TREAD SEPARATED FROM THE RIM. THE CONSUMER CONTACTED FIRESTONE AT THIS TIME. FIRESTONE FIRE HAWK #4410 P25575R15 108SM/S. *AK