I borrowed a Buddy's trailer to move a tractor and he told me was a 2" ball. He hooked it up to my truck using my 2" ball. Well it needed a 2.5/16. Could have been a lot worse but it came off on a back road unloaded and wrecked my rear bumper. Only damage is bumper. Where is the best place to get get a new one? I don't want something that will rust out in a couple years. This is on my 13 loaded up crew cab with rear sensors. Thanks in advance for any advice on replacing.