I OWN A 1994 MERCURY VILLAGER THAT WAS GIVEN TO US BACK IN 2005 AFTER WE LOST EVERYTHING IN HURRICANE KATRINA. COMPLAINED ABOUT THE FIRESTONE SEIBERLING TIRES THAT WERE ON THIS VEHICLE. SEIBERLING TRAILRIDER RADIAL, LT P205 75 R15/MS. I RECENTLY REPLACED THE 2 FRONT SEIBERLINGS TIRES ON APRIL 29, 2007 DUE TO THE FRONT DRIVER'S SIDE HAVING TREAD SEPARATION. I KEPT THE SEIBERLING TIRES ON THE FRONT PASSENGER'S SIDE AS A SPARE. STILL HAD 2 SEIBERLING TIRES ON THE REAR OF THE VEHICLE. WELL, TODAY MY WIFE WAS TAKING MY DAUGHTER TO WORK AND THE DRIVER'S SIDE REAR TIRE HAD A CATASTROPHIC TREAD SEPARATION AT HIGHWAY SPEED. 55 MPH. SHE DID ALL SHE COULD DO TO KEEP THE VEHICLE FROM FLIPPING OFF THE ROAD. SHE MANAGED TO GET THE VAN STOPPED BY CRASHING INTO THE SOFT GRAVEL DITCH, AND NO ONE WAS INJURED. THE DRIVER'S SIDE REAR QUARTER PANEL WAS DENTED AND SCUFFED BADLY FROM THE TIRE DEBRIS, AND THE TREAD THAT FLEW OFF ALSO BROKE THE TAIL LIGHT. THE PLASTIC SHROUD SURROUNDING THE GAS FILLER TUBE INSIDE THE REAR WHEEL WELL BROKE. I HAVE PHOTOS AND THE TIRES AT HOME. PLEASE CONTACT ME IF YOU HAVE ANY FURTHER QUESTIONS. TWO TIRES FAILING IN TWO WEEKS HAS ME CONCERNED. NOW, I HAVE TO REPLACE THE REAR TIRES AS WELL . *AK