I have a loud rattling coming from the driver side front. My local mechanic checked it out and thought it was coming from the brake caliper. He thought everything was tight with the suspension, except for a dreaded creak every now and then. The rattle goes away as soon as the brakes engage, so I think he is probably right. He tried tightening some of the bolts, but it was back after a day. I am thinking of replacing some of the bolts with these from Napa. Anyone experience this? There isn't much of a description from Napa, so I wondering if it will just be a waste of time.