Hey Kevin, I used Wild Spirit Radial TXR IIs. The size I used were 255-85R16s. I think they were about 32 or 33" tall. They ride great and have an old school tread design, at least as close as you can get to an old tread design for a radial. Check out my webshots and you can see them. They ride great! Get around good in the mud, rain and snow. Check 'em out. Good luck, Bongo