Looks like your front calipers have been upgraded from the Teves (that what's in your manuals) to the Akebono calipers. Akebono front calipers were installed on WJs made after May, 2002. You have a better caliper, but they are a little different and don't have the caliper spring. As you remove the pads, pay attention to how the pads are mounted to the calipers and notice how the flat metal springs fit. Do only one wheel at a time so that you can use the other wheel as a guide for putting things back together. You will need to get a different set of pads so they will fit the Akebono calipers. The rotors are the same for both caliper designs..
2001 WJ Limited with Quadra-Drive, Kenne Bell Supercharger, 3-inch Kolak exhaust, Stillen rotors (F/R) and MM pads, Addco sway bars (F/R).