I am thinking of changing the wheel and tire cobmonation on my truck, from the factory 265/70/17 to a set of harley wheels 20 inch whith a set of nitto at's or toyo at's with 305/50/20 on them, .. but i am wondering,how will they fit and what the sidewall hieght (profile hieght) is in inches compared to the factory wheel and tire combonation so i can get a better idea how i would like them.