Just sorted my GT's clicking clutch pedal, it was the bush on the end of the rod operating the clutch master cylinder.
The bush attaches to the top of the clutch pedal, it has a rubber inner with a metal centre.
It was a bit awkward but easy enough to do. Just remove the split pin on the end of the clutch pedal (very top of the pedal), remove the washer that sits behind the split pin.
Pull the bush of the clutch pedal, once removed the pedal will move out the way slightly. Push the centre out of the rubber bush, clean and grease the bushes. Re-fit to the clutch pedal, fit washer back and a new split pin and Bob's your mothers brother
Fixed for the cost of a split pin and a smear of grease!!
I had tried to lube the bush with WD40, GT85, Motorcycle chain lube, everything. Nothing worked, but stripping and greasing the bush has mad a massive difference.
I know its a cliche but the car really does drive like a different car since doing this!!
Clutch is a bit heavy, but it's much smoother in its operation now.
Hope this helps, if you need a bit more detail just let me know, be pleased to help.