Wayne, you might consider light radial truck tires instead, My Dad and I have been running them on our trailers for years with very little issues until they wear out or get well over ten years old,
Maybe it's luck or maybe there is a reason you can't use trailer tires on passenger vehicles?

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!