You do not repeat do not have to remove the radiator to do this job. All you have to do is remove the fan and fan shroud. The fan shroud is held in place by 2 very short (don't lose these as length is critical - install too long a bolt and you punch holes in your radiator) bolts that screw into lightly retained nuts (don't lose these - they fall out easily and a bit of hot glue work will prevent that from happening in the future) about 1/2 way down on each side and slip in retention tabs at the bottom. Undo those bolts and clip the wire ties that hold things to the standoff mounts on top of the shroud. Next undo the fan which requires 1) a 36mm wrench or adjustable wrench that will handle that size and 2) something to keep the fan from turning like another person with a long screw drive wedged down in there or see the allen wrench trick picture part way down
http://www.beesvillebeefarm.com/jeep.html . Once the fan is loose put a towel or piece of cardboard between it and the radiator, to prevent radiator damage; complete unscrewing the fan; and remove the fan and shroud together. As I recall the shroud may need a slight tilt toward the driver side to remove.
If you feel you just have to remove the radiator see
http://colorado4wheel.com/content/KJ_TB.html PS while you have the fan out give serious consideration to replacing the junky OEM fan clutch with a Hayden severe duty clutch. IIRC cost is like $50 and it cuts in earlier in the heat rise cycle than the OEM fan so it stops overheating sooner.