Tire Tread/belt problems of the 2001 Oldsmobile Silhouette

I purchased four tires for my van. The front two I replaced late last year. The third one I replaced about a month ago. The reason for the replacement was because the tire came apart. Today I was driving down the road and the other tire started to bump. I checked it and it has came apart also. The tire size is 225/60r16. They are mastercraft, sensys 01.

On 11-25-03 I took my vehicle to my local tire shop to get a leak repaired. They inspected the tire and marked several places on the tire and told me that the tread was separating. They told me it would be unsafe to drive so I purchased a new tire at a pro-rated price. Please investigate this type tire as I see there are additional occurrences similar in nature.

The tread/steelbelt on the goodyear eagle LS tires installed as oem on my 2001 Chrysler minivan (purchased new sept. 2002) have separated after 13 mo. /28,000 miles. The separation is worse on the front than on the back with one tire having a 12 1/2 in. Separation and numerous small splits/separations and the other having a 6 inch separation and numerous small splits/separations. The dealership responded that this was normal wear/tear which is difficult for me to believe. There are 7 other complaints regarding this tire with NHTSA, five of which are for steal belt separation. This should be investigated immediately.

Before traveling, the driver checked the tires and noticed that a nail was in one of the tires. The dealer checked all of the tires and found that the steel belt was separating from all four tires. 11/3/2003 - operator 161 - corrected the dot number at consumer's request.

Front right tire tread separated while driving vehicle at 55mph. Consumers took vehicle into a repair shop to replace the damaged tires, and the technician stated that had 2 more tires with same problem, separated tread. Dealer notified.