Tire Tread/belt problems of the 1996 Mitsubishi Eclipse

1 set of replacement tires (4 each) were purchased and all have tread separation and 1 blowout one after another. Sears auto center simply replaced the tires (under their pro-rated warranty) with the same brand eventhough I mentioned that there is a pattern of failure and it seems like the tires were defective. As of today, this will be the fifth time that my tires suffered a tread separation. All the defects were discovered during maintenance check of the car except for one which resulted in a tire blow out. (tiresize: p20570t14).

Pe00-046 ; consumer was traveling about 65mph on highway and vehicle started to vibrate. She was able to pull over to the shoulder, and noticed that passenger's side tire tread had separated. Tire was a goodyear. There were no injuries. The customer had rim and tire damaged as the result of tire separation.