How do you remove and replace a serpentine belt on a 1988 Jeep Comanche?

Loosen all visable bolts on power-steering pump (4.0 Liter only). Take a 12mm socket with approx. 4-6" ext. (3/8 drive will do nicely....) and reach UNDER the right-hand side of the pump, and you should find a tensioning bolt. Relax tension until belt comes off. You may need a small pry-bar to push unit inward once tension is released. Install is opposite of de-install. *NOTE: If you get the old belt off and forget how to put the new one back on, just remember, no matter what make,model, vehicle, the OUTSIDE of the belt runs on slick pullies, and the INSIDE of the belt runs on the pullies with raised grooves.............If you don't have PWR STR you'll probably have an idler bracket & bearing (rider's-side) with adjmt.......Hope this helps.