I have a D&D k member, a-arms, and coil-overs. I currently have "stock" ball joints that need replaced. I was considering getting the Steeda X2s because the car is pretty low with my coil-over setup. I have been told however that the usual benefits from the X2s are not needed with my setup and stock ball joints will work just fine. D&Ds phone number did not work when I called it and would appreciate anyone else's opinion.