20" tires on a 2013 Ram 1500 have a 32.5 diameter 17" have a 31.7 diameter. What would be the apparent ratio or formula to arrive at such based on 3.55 gears.
bguy, I don't understand how it would hurt the tranny either. The engine turns slightly faster, but how is that going to hurt a transmission? I would really need to see some documentation from Chrysler or the transmission builder to believe that.