What also could help is jacking up the rear end of the car. While in the air (only a few inches) spin the tires up to about 20 or so and keep your foot on the accelerator. Then lower the jack quickly. Kepp your foot on the accelerator until you hear the tires make contact with the ground. Then let go. The ground will stop the tires, therefore stopping the engine and....hopefully.....breakeing the clutch disk away from whatever it is stuck to. (Most likely the Flywheel) Not the most delicate way of doing it but it works! -Jimmy