Originally Posted by Virtygo

The way the bilsteins are designed, there are two notches on the shock body. One at stock height and one two inches highter. The purpose of these twon notches is to hold a metal flange (using a c-clip). That flange in-turns is what hold the spring seat for the stock coil. That's how they accomplish the preload on the coil (much like the Daystar I'm assuming). If you want to use the bilstines and an AS kit, you could move that c-clip to the stock height and assemble the coil with the stock preload height settings. But that would defeat the purpose of the shocks, unless you have the AS kit alread. But then you don't get the benefits of the adjusted shock valving the bilsteins were designed for.