Used for less than a year before I traded in my XD. Will fit 2WD or 4WD. They are in used but excellent condition with all mounting hardware, installation guide and inflator valves and air line. I would invest in new air line, ($10.00 on Amazon). I have these listed on Ebay as well if you prefer to purchase through the Ebay site. If you are interested, I can get you an accurate shipping cost.