Anyone else experience this? I have a 08 GT 5 spd. I have 51k miles so I'm still under the 5/60,000 powertrain waranty. I can hear a little clunk noise when I am driving occasionally. Let me see if I can describe it. If I'm slowing down for a red light and I'm in say, 3rd gear, and I downshift to 2nd because the light turns green, when I let off the cluth and give it gas, I can hear/feel a little clunk noise in the drive train. Is this the u-joint? Is this normal or should I take it in since it's still under factory warranty?