the last few days my clutch pedal has gone really stiff and has very little travel. sometimes when i change gear the gear knob wont budge pretty scary at 60mph. and about 50% of the time when i stop but leave the engine running and put the car in nuetral it stalls as if i left the car in gear. does this sound like the cable or the whole clutch needs changing. does anyone know how much the cables are and how long they take to fit. thanks for any info