AC Pulley Squealing

are you positive that the ac pully is causing the noise. If your belt is miss aligned that would also cause a squeaking noise that would be easier to fix than the ac pully. idk without seeing it, if you would have to remove the compressor to get at the pully. I think you can leave it on ther, ther is usually a bolt you have to remove in the center of the pulley to get it off

nah if u have whats called a breaker bar u can just stick that into the belt tensioner and loosen it up to work on the belts its easire than taking off the bollts at least