I just put a new motor in my 88 GT and got it running but am having a problem when I try to put the car in gear. When I press down on the clutch pedal and begin to put it in gear (any gear) the car moves, even though the clutch pedal is fully pushed in. I have a stock cable setup and am hoping the problem is related to this and not something internal. I made 100% percent sure the flywheel/clutch setup was installed correctly when I put it in. thanks for any help.