Main question would be is it a 4WD or a 2WD? I'm assuming 2wd since apparently everyone thinks it's sacreligious to lower a 4WD, but I'm not bitter.
Also, does it have blocks on the rear leaves? If so, those can be removed pretty easy. Just did that on my '07 and it dropped a little over 2 inches.
As for the front, just get a lowering kit (if it's a 2WD). There only like $100 bucks if I remember right.