Hi guys - you will have seen my post below on the adjustment of these cables - I have one in my car, and a spare, both are original Australian made cables as fitted to the Cobra Mustangs sold here in 2001/2.
My spare cable has a cream coloured plastic hat that fits over a rubber bush - the narrow part of the hat fits through the hole in the firewall for the cable to mount on to the clutch pedal. The larger part that fits over the bush has split and I am hoping that someone will either know the cable manufacturer and they might be able to supply another one, or recognise it from another cable that I can obtain and cut apart to find this piece?