I have a set of lift spring coils for a 4 door JK. 2-1/2" lift, made by Teraflex. These were part of a package deal and I'm not so sure I will ever install them. They are in very good condition and I don't believe they were on the Jeep more than a few thousand miles (my Jeep had 12K on it when I bought it). $195 and FREE shipping to the lower 48.