Tires are load range E but max load on tire is only 65psi. Truck requires 80 psi tires. Not sure how they can be load range E and only handle 65 psi. Can not tow anything because sidewall of tire is too flimsy to handle load at highway speeds. Tires also have bad vibration at highway speed even though I have tried balancing them multiple times. tire size is 35×12.5×18