Just my 2006 MegaCab, 2 wheel drive, Cummins. Pretty quick, 13.70's . Want to dump the steel clad rims, and get some polished. Not sure if there is a ride-quality difference with the size of the rims. Not towing much more than a boat these days. Tires will just be some highway tires. Has anybody switched among the different sizes, and noticed a difference? Thanks