My car is squeaking when I engage the clutch, real bad. It sounds like it is coming from underneath the hood. I recently made a longer drive than my car is used to and now my car is acting crazy. Autozone said maybe my tranny fluid is low. I checked with an auto hobby shop and he said it is most likely my throw out bearing. My clutch still has full friction, when I am starting in first gear it feels like my clutch is grinding on something or pushing pressure back on my foot. If it is my throwout bearing is that a hard job and estimated time of repair. Please help!