BOTH TIMES THE TIRES JUST BLEW OUT ON THE HIGHWAY. THE 1ST TIME IT CAUSED ME TO LOSE CONTROL AND CRASH THRU A CHAIN LINK FENCE. THE SECOND TIME I SPUN AROUND THREE TIMES ON THE HIGHWAY BUT NO DAMAGE HAPPENED. I HAVE CALLED FIRESTONE AND THEY WILL NOT HELP. THEY TOLD ME THAT IT WAS A PROBLEM WITH THE TRUCK AND FORD SAYS IT IS A PROBLEM WITH THE TIRES. THE TIRES BEFORE THEY BLOW WILL START THUMPING AND WITHIN SECONDS THEY FALL APART. *AK (TIRESIZE: P225/70/R1)