Hey, I'm new here so I hope this is in the correct spot. Sorry in advance if its not. My fiance's 1996 sentra has control arm (or something, whatever its called) which looks likes it is broken. Its between the rear wheels. Her car has a hard time traveling in a straight line and its turning is messed up. So my question is what the part is correctly called, and how much something like this typically costs? I'd rather go to a shop or dealer with some knowledge of the part and cost of it. Thanks in advance for the help!