by far the cheapest way to lower the rear is a hanger flip. air chisel or torch off the rivits holding on the rear hangers, flip em upsidedown and bolt em back on. a couple hours and $10 for bolts later you are 3" lower in the rear.
__________________
1988 Ford Ranger XLT 5.0L - project
2000 Ford Ranger XLT ex-cab 3.0 -daily
www.cardomain.com/id/gaelicvyk