Yes, I had installed new pads. When I bought the anti-squeal spray the guy at the parts store told me to spray it directly on the discs. After I did that and test drove it, it was shuddering like crazy. Today, I decided that I would read the back of the can!! Then I spent all day pulling the entire brace assembly apart and scrubbing the discs. Now that I've learned to read directions, the brakes are great. I'd like to say that I've learned my lesson, but I'm sure that I will find something stupid to do tomorrow. I know, I know, y'all are laughing at me, not with me, right?