Hey guys, new here, but don't feel to bad on U-Haul not renting to Explorers. I recently bought a light weight car trailer mostly because the experience I had renting a car trailer from U-haul with my Ram 1500.
The U-Haul trailers have surge brakes on them which drove me nuts vs. trailering with electric brakes. Also the whole pick up thing with U-Haul is a pain, in NJ at least they assure you a trailer, but where you have to pick it up isn't known until a day or so before.
If you need a trailer, see if there are any trailer sales locations near by, most do rentals and the equipment will be in far better shape then from U-Haul.
_Scott