I looked at a 2013 CTD DRW 3500 my dentists receptionist bought, when I gave her my General Ameritrac tire I posted about a couple of weeks ago. I thought the 4th Gen would be a better forum for my question. The Alcoa rims on her 3500 were only on the outside of the duals with the steel rim on the inside, so the question is how do you rotate the tires properly without having to switch the tires on the rims? I believe the OEM Alcoa's weren't available for the 3rd Gen trucks, thats why I posted here in the 4th Gen forum.