[bobbecky]

Actually, the 235/85 R16 tire that should be looked at, at least for an upgrade from the E rated ST tires, would be something like the Goodyear G614, an all steel, G rated trailer tire. These are called an LT tire, but are not intended to be on anything but a trailer. We upgraded on our two axle rig to the G614's, and the size difference will largely be un-noticed. Just make sure your wheels are rated for 3750 lbs/110 psi, to be able to fully utilize the tire. Being a 2013, your wheels should be OK, but still check. They are pretty pricey, but well worth the cost compared to the damage a blown tire can cause and the down time dealing with replacing a tire and fixing damage.