the A/R's on this are .60 cold (i think) someone sanded it off! and 1.15 hot....this thing will be hard to spool you need probably like a 6 cyl or higher haha this thing is huge! I might trade it for some bfgoodwrench tires for my tahoe though so im not sure yet i really want these tires sorry about not answering to the posts ive been really busy