Hi, I am new. Searched for this topic and came up empty handed. My a/c condenser pulley is making a terrible noise and wobbles. The a/c hasn't worked for some time as the a/c hose assembly mounted to the condenser has leaked fluid. I am curious to know if the pulley alone can be replaced or if I have to replace the whole unit. Any help is greatly appreciated. I have a 2002 silverado 1500 x-cab. Thanks.