I took in my 04 gt the other day to have them do that tsb about the clunk from 1st to 2nd they had it for about 2 weeks and when i got it back it was like driving the car the day i took her home. Tonight a buddy of mine told me to get on it because he wanted to feel the power and hear the exhaust, i was in second gear and took her up to about 3-3.5k rpms and gunned it when i heard a horrible noise come from the tranny, it sounded like somone put rocks in there, no exaggeration either it was that loud. my friend said i should take it back to the dealer he said he was sure it was coming from the tranny. Later tonight when i was driving home i gave it a little juice in 1st to see if i could duplicate the noise and it did nothing, it shifted fine from first to second smooth as butter. Do you guys have any idea what that horrible noise could have been? and should i take it back to the dealer?