Can't say what perfect is but when I crossed this bridge I looked into the 16" tires and all I could find were LT rated. Way too heavy for a little 1/2 ton AD truck so I elected to use big 15's on the rea, i.e., 2:85/70R-15 because they had a near "perfect" circumference that kept my 4:10 gears at least a 4:10 and not 4:80's. Used 2.25/70R-15 on the front. I think it looks pretty cool with a slight rake. Oh, and they are BFG T/A's.
