Ford delivered your F53 chassis with 235/85R16 Michelin XPS all steel cord radials. Most expensive 16" tire on the market. Ford knew those 16" tires would be run at their maximum capacity so the chassis was delivered with the best tires available at the time. Install rags and they will fail at an early age.
Your 35W (36' long) is almost overloaded with 2 passengers aboard. Load carefully. You do not have weight capacity for much stuff.
Also that chassis was a little fussy about the brakes. The calipers need to be removed and the slide pins cleaned and re-liberated every two years. Along with changing the brake fluid. Follow the maintenance procedure and set down by Ford and that chassis will serve you well.
Richard
95 Bounder F53