Tire Sidewall problems of the 2002 Jeep Liberty

Tire rapidly deflated while travelling east on interstate 84 near danbury CT. Speed: appx 65 mph ambient temperature: high 20s to low 30s road surface: smooth, dry only outside sidewall shows damage. Fairly sure tire did not hit anything. All 4 tires recently replaced (November 2007) on vehicle by sams club - kingston, NY. Goodyear wrangler at/d2 size p23570r16 retailer would not replace tire. Was told by manager only firestone/bridgestone tires have manufacturing defects purchased new tire from retailer $127 total. I have damaged tire.

We have a 2002 Jeep Liberty renegade with p235/70r16 goodyear wrangler sra tires. The vehicle has 12,000 miles on it as well as the tires. Air pressure in the tires were kept at manufacturers recommendations. The vehicle did not hit anything in the road. The passenger front and rear tires burst leaving approximately 2 inch tears in the sidewall. The vehicle was travelling about 30 miles per hour.

While traveling on a county highway, traveling at approximatey 45 mph, the left rear tire experienced a sidewall blowout. The dealer replaced the tire. All tires were inflated to manufacturer's recommended air pressure. Dt.