I ran into the same problem when I replaced belts on my daughter's car. I bought the Dayco belts from Advance Auto. As soon as I started the engine I could hear the belt squeal. Not real loud but annoying. I took the belt back but they didn't have another brand. I got my money back and went to Auto Zone. I told the salesperson the problem I had. The carry the Goodyear brand belts. Gatorback I believe it was called. Solved the problem. Later I made a mistake and purchased another Dayco belt for a Jeep Cherokee that had the same annoying squeal.