The special tool as indicated on the previous post is correct. Without these, the job is nearly impossible unless you have a large enough crescent (adjustable) wrench to fit over the large nut.
Which way to turn? Instead of thinking clockwise or counterclockwise, just imagine the normal rotation of the fan. If you need to, crank the engine for a bit and remember which way it's turning in relation to you standing in front of the radiator. Stop the engine, and turn the large fan-clutch nut in the same direction of the natural spinning motion of the fan while the engine is running.
Usually, some penetrating oil helps; and definitely, you'll need to use some kind of impact force to break the initial tension off the nut to get it spinning freely.
Monday, March 23rd, 2009 AT 8:24 PM