Alexrex pretty much nailed that one on the head.
BUT
you can in fact lower the front by simply uncranking the front torsion bars. Its very easy. All you need is a 17mm socket, a 17mm wrench, and a couple of minutes. Loosen the anchor arm adjuster bolt on the rear of the torsion bar (where it connects to the frame). A lot of people do it down in mexico for some reason. It's the style there.
for the rear, i would purchase lowering coils. I believe
http://www.4x4parts.com might sell them.