i searched the forum for manual tranny noises and have not seen the problem i am having...during acceleration, i hear a noise that sounds like detonation....coming from the right front. i hear it mostly in 4th gear cuz thats when the exhaust is the quietest. i can hear the noise in all gears however. i took it in to ford and they said at first that it was an exhaust problem and they ordered parts for it, but it didnt fix the problem. after a week, thay said that they could not figure it out and finally drove another gt 5 speed and it made the same noise, so there was no problem. it seems to me that just because another gt 5 speed did the same does not mean that there is no problem. what do you guys thik about it? it sounds like a knocking sound.