The front and rear don’t necessarily have to be exact. But the fronts should be as close to one of the stock front tire diameters as possible. And rears should be as close to one of the stock rear diameters as possible. So 265/295 or 285/305 are your better bets.I have 265/40/20 on the front and will get 305/35/20 on the rear. That OD is near perfect and also same OD as the 21's to keep the speedometer with the correct speed. I'm really hoping that will cure the spinning.