Here's the scoop. You need to use the search feature and LOOK AT THE STICKIES at the top of this forum. Read, Read, Read. I'll throw up what I can type out in a couple minutes
Explorers have a fully independant front and rear suspension. This makes lifting these truck a bit more complex than lifting your average Heep, ranger, and full-size truck.
You have 2 options:
1) 3" Body Lift. you will keep factory suspension geometery and factory ride. The only change will be due to your change in tires. (All-terrain ride a bit more truck-like, stiffer)
CAUTION: This body lift is designed for a Ranger, you will need a little bit of modification (filing, and buying new bolts) to make it work.
2) Spacer Lift: this lift simple moves your existing struts downwards, you will also ride pretty close to stock. You WILL need a alignment after this lift.
Options are BTF Fabrication and TRUXX. The BTF kit is a direct bolt on.
A 2.25 kit will net you 3.5" of lift due to your suspension geometry.
Here's the install of that lift kit:
http://www.explorerforum.com/forums/showthread.php?t=279667
TIRES: you can mount 265/75's (32's) on your stock rims. General consensus is that this is the largest you can push factory rims and backspacing. If you have spacers or aftermarket rims, you can mount 285/75's (33's)
