This series used to our most popular vehicle for lowering. It was easy to lower these on a budget with a set of coils and blocks and get a 3 inch front, 4 inch rear drop for a couple hundred dollars and a couple hours work. The front is a standard control arm configuration so you can use coils, spindles or control arms to lower them.
The rear is an underslung leaf setup that can easily be lowered 1 to 4 inches with a block between the axle and the leaf pack. To do it properly make sure that you use tapered blocks to correct the pinion angle geometry. The other way to lower the rear is with replacement leaf spring.