I have a 2012 3500 Limited with only 28000 miles on it and want to get rid of the Firestones that came on the truck, they are the worst tire I have ever owned. I'm looking at BFG's AT / K02'S Michelin LTX AT2's and the Goodyear silent Armor Pro's. I pull a 35ft 5th wheel and would like to go a up to a 275/70/17 or maybe even a 285/70/17. I know the 275/70/17 will fit on the stock rims but what about the 285's will the fit my stock rims. Has anyone gone up in size with the stock rims ? If you have was there any issues towing ? Thanks for any feed back.