my fan clutch was a bitch as well, but I found a strange and effective way to get it off. On the front of the A/C compressor bracket there is a threaded hole which I put in a 3" bolt. I then put a 10mm wrench onto one of the water pump pulley bolts ( at approx 5 O'clock positon) and rotated the fan until the top of the 10 mm wrench notched onto the 3 " bolt, thereby locking it. fan nut came loose no problem after that. Gear wrench's are better for this as they are a little longer than the short 10 mm wrenches you get in the tool sets.