When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
You will notice the biggest decrease in power with the 315/75-16's. They are almost 35 inches tall vs. the 305's which are almost 33 inches tall. You are basically looking at a 33x12.50 vs. a 35x12.50.