TL - WHILE DRIVING 60 MPH, THE VEHICLE HIT DEBRIS IN THE ROAD CAUSING COMPLETE TIRE TREAD SEPARATION ON THE PASSENGER REAR TIRE. ALL FOUR TIRES WERE REPLACED MAY 2006 DUE TO DRIVER'S FRONT TIRE HAVING HAD TREAD SEPARATION. THE FAILURE MILEAGE ON THE TIRE WAS UNKNOWN. THE TIRE HAS NOT BEEN REPLACED. THE CURRENT MILEAGE ON THE VEHICLE IS 100,000. THERE WERE NO INJURIES. THE ENGINE SIZE IS UNKNOWN. KB THE CONSUMER PROVIDED INVOICES FOR THE REPAIR. UPDATED 06/14/07 *TR