My belt drive system was making a loud squeeling noise and I replaced the idler pulley, tensioner, and belt. The noise at idle went away but now noise comes on whenever I turn on the A/C. I am going to go ahead and buy a A/C compressor clutch pulley. On the 05-09 Mustangs does it require any special tools to remove and install the pulley? Anyone know where I can find install instructions?