Just get a large wrench and turn the big nut behind the blades. It helps to have somone help you so they can keep tension on the belt so the pulley doesnt slip. otherwise you'll just turn the pulley instead of the nut. Even with tension it will want to slip, so make jerking motions with the wrench instead of even pressure. Try using a mallet and hitting the handle of the wrench. Eventually you'll break it loose.
When I did mine, I had to "make a tool" to hold the clutch fan, because the strap wrench didn't provide enough tention. I think AutoZone even has a 'clutch fan tool', in their loan-a-tool program that would work pretty good. Basically there are a few small holes in the clutch that you can put something in to help keep it from spinning when removing the gigantic nut.... mine was stuck on there like crazy and it was a pain to get off. I recomend stopping by autozone.
sorry to bump an old thread. i was trying to remove my fan the other night and i have a feeling its gonna be a pain. as soon as i put the least bit of pressure on the wrench, the whole motor turns over. hmm i guess i could put it in gear? just thought of that. erich, what was your motive for removing the fan??
97 Dakota SLT club cab 318 5spd flowmaster more mods to come soon
2004 YFZ450 - race ready
this supposedly gives you anywhere from 3-7 horse and it frees up the water pump so less stress possibly better water flow. mine has a lot better throttle response well not that much but its better and possibly a tad better mpg there is a thread on here somewhere that i posted a pic of the best way to get it off ill try to find it for you