These will be 10 ply rated at 80 psi the load rating is 2830.
4 x 2830 = 11320 pounds.
The loaded trailer is 7800 on the scales. Minus about 900 on the pin that's under 7000 on the axles. The 10 ply Michelins on the truck are rated 3000 pounds. I don't think I'll have tire trouble! Lord knows I have spent some money trying not to.
