Fan clutch does have special tools for removal but many can do it if they have their own "special" tools.
On the rad support there will be a label that tells you which way the nut is turned to loosen and tighten, my 4.0l OHV(older) has regular threads, i.e. clockwise tightens, counter clockwise loosens.
Some engines use reverse threads because water pump pulley turns the other way.
The Ford wrenches are not too expensive, they are just flat wrenches, one grips 3 of the 4 bolts on the pulley, the other grips the fan clutch nut.
You can often rent a set of these tools for $10, some auto parts stores have loaners.
Post #2 here shows fan clutch wrench set: http://www.explorerforum.com/forums/...d.php?t=430429
You can used a thin crescent or open end wrench on the fan clutch nut, and a strap wrench(like used for oil filter) on the pulley, but it is hard to get a good grip on the pulley.