I would definitly take it somewhere else and take a guy with you. I was told that my CV boots were bad one time when I was getting tires put on my car. I took it to Sears because I work there and I get a discount on that stuff, but because I was a girl they assumed I knew nothing (which I really don't know that much about CV boots or joints to be honest) and tried to get me to get it fixed right away. I told them I'd have to check around for prices and I had my friend who is a mechanic check it out and they turned out to be fine. Absolutely nothing wrong with them. Since then, I will never take a car there again, or reccomend it to anyone (at least the Sears in my town). Anyway, long story short, get a second opinion.