Hi everyone this is my first post. I've done a lot of reading and searching on the forum with no answer so I'm gonna ask. After a lot of googling and ready all the tire threads on this site I've decided to go with the nitto trail grappler. My question is i see a size 315/70/17 which is a D rated tire 76 pounds and a size 35/12.5/17 which is E rated at 79 pounds. Any suggestions on which one I should get for the raptor and why? Thanks for the help.