BROUGHT TRUCK INTO AUTO DEALERSHIP AND FIRESTONE DEALERSHIP, AND BOTH TOLD ME THAT MY TIRE IS DELAMINATING. BOTH TOLD ME THIS IS FROM DRIVING WITH A FLAT TIRE. THIS TIRE HAS NEVER BEEN FLAT, NOR HAS IT EVER BEEN LOW. THIS IS THE SECOND ISSUE I HAVE HAD WITH THE FIRESTONE TIRES ON THIS TRUCK. *AK (TIRESIZE: P265/75R)