The same thing happened to me. A one of the posters (Mayer) suggested take it to an apple store first before taking apart your laptop. I did the complete opposite and bought everything from Ifixit.com. I fixed it myself with no problem, but the problem happened again when all the hinges broke.
So my suggestion is let the apple store do a diagnosis. You may get everything fixed for free. If you read some of my other posts regarding my Macbook Air hinge problems almost every single thing was replaced and it looks / works like the day I bought it.
Good luck