[gringoloco]

If you wanna do it on the cheap AND do it right, you will want drop spindles up front, and cut a full round off of the stock coil springs. This will net your 4.5" drop. Stock length shocks will work.

On the rear, a 6" spring will work, but I prefer a 4" spring/2" block combo. This, along with relocating rear shocks will allow you to use stock length shocks (search under username Scoti for a free relocation method). You will also want an adjustable track bar, as lowering will shift your axle to one side. There is also a write-up here in the FAQ on how to build your own on the cheap.

Any questions, please ask. These methods are tried and true and will get you where you wanna be- without spending a ton of cash...