I recently purchased a used exedy twin the disc clutch I had gauged the disc and they were 3.8 a mechanic friend of mind told me they in descent shape so I had it installed in my car.Today was the first day I went to run the car only to find I cannot the car its like the clutch is not disengaging and it starts to shake violently I thought it was wheel hop only to be told by friends the car was not hopping at all please help me any suggestions would be VERY appreciated talk to me.