2015 GRAND DESIGN REFLECTION Tires Problems

4 GOODYEAR MARATHON WERE INSTALLED ON OUR REFLECTION FIFTH WHEEL CAMPER. THE ORIGINAL TIRES ON THE CAMPER WERE EXCHANGED FOR THE GOODYEAR TIRES. DOT 2VUN1LHR4213 THROUGH 4813. ON JULY 24,2016 THE TIRES WERE ADJUSTED TO 80 PSI. AFTER ABOUT 65 MILES INTO OUR TRIP THE DRIVER SIDE FRONT TIRE EXPLODED AND SHEARED THE TREAD FROM THE TIRE. THE EXPLODING TIRE CAUSED $3700 WORTH OF DAMAGE AS QUOTED BY AN AUTHORIZED DEALER. THE TIRE WAS TURNED INTO AN AUTHORIZED GOOD YEAR DEALER AND A REPLACEMENT PROTOW TIRE WAS PURCHASED FOR $144. ON THE RETURN TRIP THE OTHER GOODYEAR MARATHON SAME SIDE SEPARATED. THIS TIRE WAS RETURNED TO GOODYEAR FOR EVALUATION. TIRE SIZE ST 235-80-16 LOAD RANGE E.DOT 2VUN 1LHR 4813 THE FIRST TIRE EXPLOSION WAS VIOLENT, THROWING FRAGMENTS INTO FOLLOWING TRAFFIC. ONE NEAR ACCIDENT WAS OBSERVED OF TRAFFIC TRYING TO AVOID THE SHARDS WITH THE CAR APPEARING TO GO SIDEWAYS. THE...