Tire Blowout problems of the 2011 Ford F-350

Note: granada tire brand(a les schwab bend oregon tire brand) was not in the drop down to select. Left rear tire blowout due to delamination with less than 2500 mille's on a new set of tires. Driving a 2011 f350 west bound 6 Aug 2017 on canadian hwy 16, excellent road and weather, straight section while towing 40 ft fifth wheel. Had just checked for correct inflation. Blow out occurred on a straight clear level section while during the speed limit in cruise controll. Could have been fatal in other situations. Bought four new cooper tires to replace the granadas. Found the right rear was also in the process of delamination and could have blown out soon. Severe damage was done to the left rear wheel well are and exterior truck bed. Was able to drive after spare was installed. Tire brand granada tire line touring l/t tire size, p275/70r18 component* light truck tire blow out dot number 5kws rt 2711.

The contact owns a 2011 Ford F-350 equipped with michelin m+s all season tires, size lt 275/65 r20, dot b70t003x2211. The contact stated that while driving approximately 20 mph, the vehicle began to vibrate and the front passenger side tire had malfunctioned. While changing the tire the contact discovered that the inside section of the tread had separated from the tire. The contact indicated that 3 days later while driving approximately 65 mph, the front end of the vehicle began to vibrate and the contact stop the vehicle. Upon inspection the contact discovered that the outer section of tread on the driver side tire had too separated. The contact continued to drive at slow speeds for a short distance before tire experienced a blowout. The manufacturer was not notified of the failure but no solution was offered. The VIN was not available. The failure mileage was 47,000.