If you are starting from ground zero with nothing done yet, go with Caltracs. We have been looking into rear suspension for a while now and took out the ladder bar that was very crude set up built by a previous racer but still ran in the 8s with it. Fixed the floors on the Cuda and putting in the complete Caltrac Systems with Mono Leafs and back slider. You get to set you own ride height and various over things to make this work and fit better that we needed because the front segment of the spring need to be a longer that the 20 inches of a front super stock spring. Talked to Caltrac and they were great help.