general problems of the 2003 Chevrolet Avalanche

3 of 4 tires, cooper discoverer lsx p265 / 70r17, failed within 8 months of each other due to steel belts separating at approximately 19 - 20,000 miles. In the last instance I experienced a blowout while driving. All 4 tires were purchased new and in good condition when the incidents occurred. They all have the same d. O. T #: up1ycl71010.