I am trying to get some steelies off Ebay but I am having a hard time with the backspacing. I have looked around here and got some good info, but I am puzzled about the conversion from mm to inches. I saw that 14mm offset equaled 4.84 inch backspacing. My little calculator puts 14mm right over 1/2". I am going to be installing 255's on my truck. I am trying to find a range that I can look for. There are 4Runner wheels and FJ wheels. But the FJ are the 14mm which seems like too big a backspace.