Clat trac vs. SS springs vs 4 link

perfacar, do you actually understand how Caltrac's work? It is a modified 4-link add-on for leaf springs with no effect whatsoever on the up/down travel of the suspension. Their sole purpose is to locate the axle torsionally in relation to the chassis, preventing spring wrap. So once again, can you explain to me exactly how this "binding" occurs? Still wondering...