I'll be ditching my stock wheels and tires and moving up to 18's. Has anyone put that size on their truck? If so, what is the offset and back spacing I need. I can't decide between the Foose spank 8's or the new Dick Cepek DC1's. What's the biggest tire I can stuff in there w/o clearance problems? I am going for the look of the truck in Edge juice ad. My truck's suspension is stock. If anyone has pictures, please post them. Thanks.