Tire Tread/belt problems of the 2002 Dodge Intrepid

Subject: mastercraft tire tread separation comments: in March, 2003, I purchased a 2002 Dodge Intrepid using ebay. The car had 8,000 miles and carfax showed no accidents. When the car arrived, I noticed it had two new mastercraft sensy tires on the front, unusual for that low mileage. Upon inspection, I found that the right tie rod end had been bent and not repaired, the likely cause of the new tires. I then replaced the right tie rod end and had all four wheels aligned. As the tires had a tread wear rating of 620, I figured there were good for many miles. In late July, 2006, the car had 32k miles. I was hearing a loud "slapping" sound on the front end. Taking the car to a costco car center, they determined that both tires had tread separation, requiring immediate replacement. The tires had less than 25k miles on them. The car has a lifetime four-wheel alignment policy from firestone ever since I purchased it, and the front end alignment has been checked about every 3-4k miles. These tires apparently had a manufacturing defect. Their identification is mastercraft sensy 01, 225 60 r16 m&s 98t, dot 3dx3 fmw 3302, not as described by your form below which has incomplete info use only the info in this paragraph to describe model, size and dot number. I suggest this defect should be investigated. The tires were left at costco and are no longer available, but I have their written statement of the problem. Your comments please. Thank you.