Thanks a million, everyone! Got it from montgomery mazda for $110ish and paid the mechanic $33 to put it in. Much better than $450. you're right, my boyfriend could probably have done it and/or showed me how to do it -- but he's a traveling musician and ALWAYS out of town. and honestly, I was feeling lazy and just didn't want to f with it. $33 didn't seem all that bad to me.
When it was in the shop the first time for the O2, I asked them to take a look at the brakes (since it had 55k on it and the back brakes had never been replaced). They said they were fine, and even told me what percentage I had left on the front and back (I can't recall now what it was).
4 days later, the back brakes were clearly NOT okay and they were squealing like a banshee. Had them look at them a second time when it was back in to put the 02 on, and what do you know? back brakes are shot and need to be replaced. I gave them all kinds of hell for telling me they were fine and even going as far as to tell me what percentage I had left. They gave me some lame excuse about not looking closely with a flashlight..... why did he think that would excuse what they did?!?!
So I raised a fuss (something I have learned to be very good at after dealing with plumbers, contractors, electricians, and the like thinking I'm a "stupid girl" during the remodel of my house) and got the front and back brakes replaced for free.
I will never NEVER return to that place again!!
You all were SO helpful! Thanks again!!!! This forum is GREAT!
Gretchen