So, I have a horrible squeeling belt! I've replaced the idler pully, tensioner pully, and belt. I'm eliminating the possibilities and all the pullies I have left to replace is the power steering pully, water pump pully (or water pump), alternator pully, and the harmonic balancer. I'm trying to get the power steering pump pully off and I have the special tool available. I've tried to remove it with the special tool and it didn't even budge. There's an allen head screw in the center of the shaft. Does it need to come off or no? I've tried to take it out and it didn't budge either. What do I need to do to remove this dern thing? My truck has over 100,000 miles, so obviously it's gonna be hard regardless.