I'm assuming you have 2wd, I checked your info and you didn't post it. I'm not too familiar with this stuff but till someone with more knowledge posts, here goes; You probably have blocks that you can remove between the springs and rear axle. And you can do a shackle flip, if you take the rear spring shackle mount and reverse the mounting it will lower your ride. I'm not exactly sure how much this will get you but a little time with a tape measure will get you close. For the front, I'm guessing, I think you have coils. Old cheap way is to use a torch and heat the coil till red hot. It'll relax and settle down next to the coil beside it. This is a one way trip so do it half a coil at a time. You also lose some suspension travel so think this through first. Make sure you have all the stock rubber bump stops in place, front and back. I'm sure there are other, better ways, someone else will have to chime in though.
Good luck,
Richard

talk to tom or 91cfr or oldford they will know

X2 on Danny...

and yes, another lowered truck would be nice... too many high guys... LOL

Go with DJM Dream beams for the front. If you don't want to flip the coin for new ones, decent used ones can be found on craigslist and ebay. For the rear, buy the axle flip brackets. Cheap and easy. I might even have some flip brackets somewhere in my mess. I ran em before I was bagged. I'll check..