Tire Blowout problems of the 1999 GMC Yukon

I purchased a set of bf goodrich all terrain tires for my 1999 GMC Yukon. The left rear tire had a blow out after I drove the car about 12 miles since the new tire was installed at the discount tire dealership in burien washington. The tire was a c load rated tire, size 265 16 r75. The entire sidewall of the tire blew out around the circumference of the sidewall. I have never seen a blow out with this characteristic. This was a very serious event and it occurred on a band new tire. The tire was defective and there are likely other tires with this same defect.

The complete tire id is 31520exbm2030t-2. The tire seperated in the sidewall at 70 mph on a strait rural highway at 60f temperature. I was able to control the vehicle enough to pull off the side of the road and replace the tire without incident. Just thought I should report it. There is almost no visable wear on the tire prior to the blowout. Dt.