hello my friend just picked up a 90 mustang 5spd 5.0 with a cobra 5.0 motor. he had an issue with the clutch cable which he thought was broken so he replaced and it still didnt act right so he put a new clutch, pilot bearing, through outearing and rebuilt the cable adjuster. then when he went to push the clutch pedal down same thing also he got a a new adjuster set up from another car. what is happening is he will get the pedal about half way down then the pedal just goes right to the floor and wont alow him to dissengage the clutch. does anyone know what might be wrong?