A friend of mine recently bought a book on suspension from one of the 4x4 magazines. In it, it shows a wrangler or FJ with what looks like a lever attached to the rear shackle to allow for additional droop. The shackle is a compression style setup, like a shackle flip. The shackle attaches to the lever (not the frame), and the lever attaches to the frame about 18 inches forward. Under compression the shackle works like a normal one. When in a droop condition, the lever allows the shackle to drop 6-8 inches below the frame, giving additional contact for the tires. Does anyone know who runs this type of setup, or where I could get more info? Thanks!