I'm changing out my clutch cable, and the fitting on the new one won't go over the tube on the firewall. See ref pic for the fitting in question. (the cable brand I just received is "Cofle", not a Terry Cable)
The I.D. of the old cable fitting is 12.6mm, the I.D. of the new cable fitting is 12mm
The firewall tube looks ok. (e.g. not built up with paint, etc.)
Click to view attachment
Anyone experience this?