Ok, I feel so stupid asking all these questions so I will ask this last one to get to the point.(At least I have answered some too and given back.) I have a 04 F150 with a leveling kit. I want to put Helo Maxx 6's on it. I am now looking at the Pro Comp 305/70/17s, ( thanks Wandell for the advise about the 315s), if these wont work, what will? As in how big can I go. By the way this is by far the best F150 site I have found, you guys have had better advise than dealers.

 

They should fit. I've seen several 04-06 4x4's with leveling kits running 325/60-18 (33x13.00) tires on 18x9 inch wheels and they look great.