Pep Boys will most likely rip you off. They tried to tell me things were wrong with my car that were NOT. (my Dad works on them for a living, and said what they wanted to replace was NOT broken, talk about a HUGE fight with them! Too bad he could not do the work for me as he was too far away and cant bring a lift to my house) We finally found a local mechanic that is reliable, cheap, and not ripping us off. But yes, get your own prices for parts, then call and see how much labor is an hour, THEN you can call a dealership and ask what the "book time" is for the job. (talk to the service manager to get that answer) then when you get your estimate you will know if they are trying to rip you off. I have had a mechanic tell me "I have never had someone ask me to put in their parts for them" I refused to use him. And sadly, as women we can get taken advantage of in this area. I am glad that I helped my Dad when growing up and know enough not to. Good Luck!!!