Not sure about the rears (I have a Wrangler - front discs only), but I'm sure they're not that different. First remove the wheel. Next, remove the caliper - 2 bolts, piece of cake. Remove the outer pad - a couple of clips, just a little persuasion will do it. You have now reached the point where I've had the most trouble doing discs. The piston in the caliper needs to be compressed into the caliper so the caliper and your new pads will fit back over the rotor. The method of choice, I believe, is to use a LARGE C-clamp to force it back in. I just used my little bottle jack, pressed against the inner pad with the caliper jammed up against the frame - just jacked it back in!! Oh, yeah, you'll want to suck some brake fluid out of your master cylinder reservoir before doing this - makes for a real mess if you don't. Once the cylinder is shoved back into the caliper, remove the inner pad (pulls right out). Put your new inner pad in, then the new outer pad. Put the caliper back on the rotor - takes some fiddlin' - there's two little sleeves and rubber boots where the bolts go that'll have to be backed out in order to seat properly. Once that's all lined up, put the bolts back in, pump the brakes several times, refill the reservoir, and you're good to go!!! Now, if you put it off too long (like I did) and have to turn/replace your rotors, there's a couple of other steps, but it's pretty simple. Best of luck!! No sense paying anybody outrageous money for doing something so simple.