I'm having this problem. Recently, when I take off from 1st gear, the car shakes alot. And the car used to move forward when I shift into 1st and slowly let go of the clutch without stepping on the gas pedal. Now when i gradually let go of the clutch, it doesn't move forward. It just vibrates alot until i reach the point where it stalls. What do I have to replace??? Any suggestions? Thanks.

 

It sounds like the pressure plate and probably the flywheel are worn unevenly. Basically do a full clutch job and get the flywheel resurfaced or replaced. Have you done any high rev, high slip dragrace type launches? That tends to warp the pressure plate and flywheel. Most likely the disc is worn enough to warrent replacement and always replace the throwout bearing. If you are dragracing, talk to some clutch suppliers and see what they recommend as an upgrade.