I have shimmed and done every last thing I can think of including buying an Alan Grove alternator bracket to try and quiet this down. I've owned this engine for 27 years and have never had this problem. It did sit for 8 years though. Anyways, engine works great. No complaints. Just this stupid fan belt. Which has been driving me nuts since I got the car going again in January. It did not do it for the first week or two, but since January now I've been thru 5 alternators at Autozone trying to figure this out. And used lots of belt dressing mixed in with lots of different belts. And last night I found a different pulley to try out. I did notice something last night though. I put the harmonic balancer on again making sure everything was lined up from there. I then put both belts back on (power steering and the alt/water pump belt) but I left the fan and the fan shroud off so I could see better. No squealing what so ever. The water pump seemed to make a winding noise though. Not very loud. Just enough that I noticed it. But once I put the fan back on that pulley the squealing started right up again. I appreciate any help. Thanks.