Thanks for all the help with my bulb problem!! I test drove the car a little more today and I think I have more information that might be helpful in figuring out what is causing the low pitched moan when moving. the car only seems to make the noise in third fourth and fifth gear, and then only under acceleration or constant speed, if I take my foot off the gas it stops. I have the 5sp in my car, do you guys think something is wrong with it? I checked the rear end and it is rounded with the square at the bottom right so I am assuming that it is not the limited slip system.

Thanks again for all your guys's help, I'd be lost w/o it.

Ethan