Changed out my belt, idler pulley up top and the belt tensioner because it was time. After doing this I am getting an intermittent screech or whine from the compressor pulley. It happens with air on or off which makes me think it's not the clutch but more the pulley and bearing. Does this sound right to you guys or should I swap out the pulley and clutch assembly?

2003 blazer 2DR 2WD @ 215k