Since I have a skyjacker lift and I'm kind of partial to them, I'll gladly tell you what I know. Go to rockymountainsusp.com. They do offer a kit for the 4WD explorer.This is different than the old 6inch kit apparently. They call it the Explorer Class II system. Now they want $975. I dont know how this differs from my kit but the price sure does. They springs they sent me where way to stiff so I just did a spring over in the rear with the origional springs. See if you can get the kit without the rear springs. It helps to get the spring packs on top of the axle.