I just purchased a 96 mustang gt. i put about 800 miles on it and it started to make a clicking noise when i get on the throttle and was only doing it when it was in gear at first but now does it when i start it. I can rev the engine in nuetral and it wont do it. i did notice yesterday that a couple of times when i started it it made kind of a howl like the starter was running a little after starting. i'm pretty sure its not a u-joint. any help would be greatly appreciated