Thank you very much. I have 8 lug split rims. I have also heard you can run tube with radials on the split rims but honestly, I dont want to fool around with them. I would like to run the widest rim and tire possible and with that 4.57, gaining a little height on the rear wouldnt be a bad thing either. Current tire size is 7.00 x 15 which closely matches that 225/70/15 i mentioned.