is your pulley on compressor 1/2"? I had trouble with 7490 belt that fits crank and water pump bottoming out and slipping on compressor. My clutch on compressor went out and I am trying to find compressor with pulley width to match crank and water pump.
The compressor is a 1/2 inch. Because I don't have power steering the belt contact on the water pump pulley is not optimal. Sometimes I hear a slip/squeal, but for the most part it works fine.
