I have 93k on my 01, lots of higway miles, and a considerable amount of around town towing trailers between 6K and 12K. The factory LS is starting to loosen up a bit. It doesn't hook up like it used to. I will probably replace it with a Lock-Rite if they make one for that carrier. If not then I will either rebiuld the factory unit or blow the big cake on a detroit.