Pressing clutch down I hear this..

Greased U joints saps that they should be greased every 6 months if you are putting the car away for the winter and balanced the driveshaft again.
Hope that helps.
I know how horrible I felt at 2800,2900 max 3K rpms the whole thing would start to shake, vibrate and scare the bejesus out of me until I just floored it the last time and said, it blows stops or clears up.
Nothing happened but harder vibrations.... On my way to Dr Driveshaft... And finally my nightmares were finished.

MAPS