Eibach says they don’t settle. I’ve had mine in for about four or five months and 12 or 1500 miles and they haven’t settled at all. I called them and that’s the answer they gave me. I installed a set of rear airbags because I was going to install them anyway and put about 6 pounds of air in the back. Rides real nice. The back end is about a half inch higher than the front.