I致e loaded my ton heavy enough that I had to take some logs off so it would steer. I致e seen other trucks loaded so the front is completely off the ground. And that痴 a F-450. I致e never looked at a new 450 but if it痴 anything like my 90s 3500HD the frame is way heavier than a ton truck frame. I知 guessing significant rust is the only way.