Ok, so I even drove the car earlier this morning and it was fine. Has been a real good car but I have had for about 6 months and I know some work was done on it before. Now I got in and it wouldn't go to reverse unless you shut off the car. Trying to put in any gear while running in the driveway makes a violent shaking of the whole motor and when I push the clutch it goes straight to the floor? Please help?