DConrad, I appologize I took so long to get back. The rubbing issue sounds very familiar.
This is the information I pulled from the 4wheelparts website. They are awesome looking wheels at a reasonable price. The rubbing only takes place on the back side of the fender, at full lock, with the outside of the tire rubbing. I plan on cutting the fender out, so I temperarily just banged it back with a sledge hammer. Now it only rubs a little when I hit a hard bump at full lock. Longer control arms should also help. I have plenty of room in front of the tire. I have no rub from the inside of the wheel, indicating there may be room to change the back spacing a little and correct the problem. If you go too far, it will rub the inside, and the only fix would be spacers (not recommended). When I go to 37" tires, i'll cut the fenders out properly. I don't want to go too high. I just want ground clearence. It sounds like you've already got it figured, but I hope this helps some. Good luck.
Part Number: M/T879481
17x9, 8x6. 5 Bolt Pattern
BackSpace 4. 5 in.
Max Load= 3400lbs
Finish = Chrome
Hubcentric= No
Offset = -12 mm