not quite sure what the problem is, maybe a motor or transmission mount, or possibly the flywheel? The car is a 1995 gt 5 speed, 373 gears. When I let out on the clutch the car will shake violently like it is going to fall apart. I have noticed that if it is cool outside it doesn't really do it. If you drive the car for a long period of time it will do it. If you rev up the engine and engage the clutch at a higher rpm it does seam to help a little bit, but not much. The best way to explain how bad it will sometimes shake is this, you know when you stall a car by letting out on the clutch to fast and not enough gas and the car stalls. Imagine repeating that in a sequence. any suggestions? Thanks for any input.