You can see in the rear I had made adaptor for the coil overs. Started as the stock washer for the spring that I welded a 2 1/2 od that is 1/4 thick that a piece of 2 od could get welded with a washer on top to keep it centered. Fronts are slip on no mods really needed. I can tell to get it as low as mine the spring just sits in there loosly when no wieght is on the car.