Tire Bulge problems of the 2004 Ford Explorer

While driving home from work last week I noticed a slight 'bumping' feel like an unbalanced tire, so I took a look when I got to my driveway but found nothing. The next day on my way to work the "bumping' was much worse so I stopped to check and found a large bulge on the tread of the right front tire. After slowly returning home I removed it and set it aside. A few hours later the treads were separating badly so I let the air out before it blew apart. I ordered a replacement tire(different brand) but I've still got three more of these on the vehicle . They have 36k miles on them and a 60k warranty with only modest tread wear but I still check them every day. I don't feel safe.

The contact owns a 2004 Ford Explorer equipped with capitol precision trac ii tires, size: 245/65r17. While driving approximately 55 mph, the contact was alerted by another driver that there was a bulge in the rear passenger side tire. The contact discovered that the tire had a bulge on the outside wall. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The VIN was not included in NHTSA campaign number: 14t013000 (tires). The VIN was unavailable. The approximate vehicle failure mileage was 147,000 and approximate tire failure mileage was 3,500. The dot number and VIN were not available.