I took my car into the dealer this morning for a service appointment (it's still under warranty), and they've called to inform me that I have a huge split in my trailing arm bushing and need to have it replaced to the tune of 5. I called the mechanic that I go to otherwise, and he won't give me an exact quote until he sees the car. I have two questions: 1)Is this price as ridiculous as I think it is? and 2)How likely is it that my trailing arm bushing actually needs to be replaced? What will happen if I don't replace it? They also told me I have a leak in my oil pan gasket which they can fix for 5 - my mechanic told me that would only cost about 0. Any suggestions or input on either repair would be very much appreciated.