2013 FORD E-450 Suspension Problems

I AM A CONTRACTOR FOR FEDEX HOME DELIVERY AND OWN THE TRUCK IN REFERENCE. AFTER APPROX 4900 MILES, THE TRUCK FAILED SAFETY INSPECTION BY FEDEX AND NEEDED THE FRONT TIRES REPLACED. UPON INVESTIGATION, IT WAS FOUND THAT THE TIRES SUFFERED MAJOR/EXCESSIVE TREAD WEAR AFTER JUST ONE MONTH ON THE ROAD. WHEN I ADDRESSED UTILIMASTER, THE BODY COMPANY, ABOUT THE ISSUE I WAS TOLD IT WAS NOT THEIR RESPONSIBILITY AND TO CONTACT FORD. FORD EXPLAINED THE SAME AND TOLD ME TO CONTACT UTILIMASTER. NEITHER PARTY WANTS TO TAKE RESPONSIBILITY FOR DEFECTIVE TIRES THAT I HAVE NOW SPENT THOUSANDS OF DOLLARS REPLACING, TO DATE. THE WEIGHT AND DISTRIBUTION FOR THE TRUCK/CHASSIS IS IMPROPER ACCORDING TO A FORD ENGINEER. THIS IS DANGEROUS AND A RESOLUTION MUST BE FOUND BEFORE SOMEONE IS SERIOUSLY INJURED OR KILLED. THE TRUCK NEEDS TO BE PROPERLY REPAIRED OR TAKEN OFF THE ROAD. UTILIMASTER BELIEVES THE FIX IS TO...

STEERING IS HEAVY, (HEAVY/STIFF/STEERING WHEEL HARD TO TURN), DOES NOT ROTATE AND/OR RETURN EASILY AND SMOOTHLY. THE OPERATOR/DRIVER IS REQUIRED TO MANUALLY ASSIST THE RETURN OF THE STEERING WHEEL BACK TO CENTER, DOES NOT HAVE RETURN ABILITY TO CENTER HOME POSITION ON ITS OWN. SAFETY IS #1; HEAVY/STIFF/STEERING WHEEL HARD TO TURN RAISES SIGNIFICANT CONCERN WITH THIS SUNSEEKER CLASS C MOTORHOME/RV BEING UNSAFE, POTENTIALLY DANGEROUS AND/OR A HAZARDOUS SITUATION WHEN THE OPERATOR/DRIVER CONSISTENTLY NEEDS TO MAINTAIN A WHITE KNUCKLE CONTROL OF THE STEERING WHEEL. WITHOUT ASSISTANCE OR INTERVENTION FROM OPERATOR/DRIVER THIS CLASS C MOTORHOME/RV WOULD CONTINUE TO TURN LEFT OR RIGHT, AND WILL NOT RETURN AND CONTINUE IN A STRAIGHT FORWARD MOTION. THIS SUNSEEKER CLASS C MOTORHOME/RV TRACKS SIDE TO SIDE FROM UNEVEN OR GROOVED PAYMENT SURFACES CAUSING A WOBBLING EFFECT. ANOTHER EFFECT WHEN A LARGER VEHICLE IN SIZE PASSES ON THE FREEWAY CAN BE DISTURBING AS NOTED. THIS CLASS...