So if I am understanding right I could cut the rear section of all four leafsprrings- front and rear. The front part or the springs on the rear would then act as trailing arms then we could install the air ride. Probably with a panhard rod to keep the rear in its place. Sounds easy. The front I would do the same if there is room. I did not think of the turning forces on the suspension! This truck will have its original driveline in it.