BTW, For lowering the front, cut the bumpstops down and back out the torsion bars all the way. If you want lower, you can pull them out and rotate them (re-index) them a notch to give you more room to drop it.

For the rear, get a set of leafs off of a 4x4 720 pickup and that will drop you another 2 inches. The arch on the 720 springs is much less aggressive then the 620's.