[Raven87]

Originally Posted by Eric SS

Regardless of the math, like I mentioned above, just go to a tire manufacturers website and look at the same model of tire that is available in both a 315/35 and 315/30 (or 305/35 & 305/30) and you'll see they are about 1" difference in diameter and they are also 1" taller than the stock 275/35/20. The 305/30R20 is the same height as stock and is therefor the correct tire to go with. While the 315/35 or 305/35 will fill in the fender gap better, it is not the correct tire size to use. I've said this repeatedly on here but few seem to listen and keep going with the 35% tire.

Exactly.