I am getting a "clacking" noise when I engage my transmission into first gear. It almost sounds like a clunk or a clack. When the car is stopped and in neutral and I put it into first gear with the clutch still pushed down the transmission or clutch makes the noise. Its very noticeable. Is this a normal sound or could something be wrong with my transmission? Also, when I have the car in first gear rolling at about 5 mph and I give it a little bit of throttle there is almost like a delay before the rear end responds and I get the loud clack from the transmission/clutch. I let off the gas and then give it gas again and it clacks and almost jerks forward. Ive never experienced this before. Otherwise the car shifts good under normal driving. Any ideas or is this normal?