since the leaf spring is on top of the axle, no lowering block will lower the truck. lul. just get a flip kit which puts the spring under the axle (this gives you 5in drop). If that is too much, you can get a lifting shackle to net 3in drop. Lots ofguys do this as its easy to go back to 5in drop by taking out the lifting shackle.
The front you can get 3in drop springs, or 2in drop springs. Or if you're really cool and want to do it right, you can get DJM arms which give you 2in drop, and combine it witha 2in spring to net 4in drop total up front. Don't forget shocks!
Oh, and installing an axle flip kit for the rear is pretty easy, just soak the bolts/nuts in penetrating oil for a few days before you start wrenching on it. they like to rust and stick.
2001 XL 2wd, 2.5L powerhouse Hurst equipped
building a 2.3l turbo monster engine
8.8 l/s, 4/4 djm drop
17inch cobra rims, 13inch cobra front brakes, 12inch cobra rear brakes