I ended up making a tool for this job.

Buy a 3-foot piece of flat steel (1/8" thick by 1" wide). About 1/2" from the end, drill one 1/4" hole. Tap that hole with 5/16" tap. Thread in a 5/16" x 1" hex-head bolt. Now do the same thing 3" on-center from the first hole. Now you have a long piece of metal with two bolts threaded through it, and those bolts correspond to the holes in the water pump pulley. Standing at the passenger side fender, hold your new "bar tool" in your left hand (make sure bolts are sitting well into the pulley holes), and grab your 1.5" adjustable wrench with your right hand. Now push with your left and pull with your right. It'll come off. Mine would not come off with a strap wrench. It was the stock clutch and it had been on there for 6 years...so it was STUCK. But this tool got it loose.

Good luck!

 

mine had been on for 11

 

Newbie here...... going nuts with trying to get the fan off. After coming to realize I needed to make a tool. The fan goes counter-clockwise. That means I need to turn the nut clockwise. Correct? I read something about the nut coming off counter-clockwise (ooops) Its has now been seated fairly tightly. Thanks in advance.

 

OK never mind. Got 3ft cheater bar - it was counter-clockwise. In the direction of the fan's rotation..... still confused. but moving on!

 

i used an a/c clutch removal tool. lined up the pins to the holes on the pully and worked like a charm.

 

Mine was on for 13 years before I changed the water pump last summer. Used a strap wrench, also split my thumb open when it came loose. A little blood, but that is working on the truck, all good.