The tires on my tow rig are nearly bald in the center tread of the tire. They are 285/75/16 mounted on the factory aluminum wheels. The manual calls for 80 psi in the tires, however the spec'ed tire is a 245/75/16. I aired down the tires to around 34-36 psi which should stop the weird tire wear, but will it handle a loaded trailer? I am in a prediciment. I need new tires, but want to make sure the 285's will work OK with the 6.5" wheels.