2017 FOREST RIVER CARDINAL Wheels Problems

PURCHASED NEW 5TH WHEEL TRAILER IN DECEMBER OF 2017 WITH GOODYEAR MARATHON ST235/80R16, LOAD RANGE E TIRES INSTALLED. WHILE DRIVING AT 55 MPH ON A SOMEWHAT CURVY AND HILLY STATE HIGHWAY WITH 4800 MILES ON RV, THE LEFT REAR TIRE TREAD CAME COMPLETELY OFF THE TIRE DAMAGING THE RV IN THE PROCESS. I PULLED TO SHOULDER AND FAILED TIRE HAD A SIGNIFICANT LEAK, BUT DID NOT BLOW OUT SO I REPLACED IT WITH THE SPARE. I HAVE TPMS INSTALLED ON ALL 4 WHEELS WHICH REPORTS TIRE PRESSURE AND TEMPERATURE. ALL 4 TIRES WERE NOMINAL JUST PRIOR TO FAILURE. ALL TIRES HAVE BEEN MAINTAINED AT THE REQUIRED COLD PRESSURE OF 80 PSI PRIOR TO EVERY TRIP. THE RV IS STORED INDOORS WITHOUT ANY SUN EXPOSURE.

WE HAVE A 2017 CARDINAL 5TH WHEEL, AND IN JUNE 2018 WE GOT BACK FROM CAMPING AND WHILE IN TRAILER EMPTYING OUR THINGS OUT WE HEARD A LOUD BAND. IT ENDED UP BEING THE DRIVER SIDE FRONT GOOD YEAR MARATHON ST TIRE THAT BLEW DUE TO A LARGE BULGE ON THE INNER SIDE OF THE TIRE. WE CALLED GOODYEAR AND THEY SAID TO FIND A GOODYEAR PLACE TO HAVE THEM REPLACE AND THE DEALER COULD DEAL WITH THEM. WE ARE STILL WAITING FOR OUR REFUND. NOW SEPT 8TH 2018 DRIVING HOME TO CA FROM UT WE PULLED INTO JEAN NV TO GET FUEL AND I NOTICED A BULGE ON THE INNER SIDE OF THE FRONT PASSENGER TIRE. WE PUT THE SPARE ON AND CONTINUED ON THE ROAD. WE PULLED OVER ON THE 58 FRWY IN BARSTOW AND CHECKED TIRES AND ALL WAS WELL. WE CONTINUED ON AND WE EXITED OFF...