To update... I have installed the new quadrant and firewall adjuster. The current cable appears in very good condition. The install was a pain at times but I got through it. Only thing is the cable is very loose, even with the firewall adjuster at its max. There's a good inch of play in the pedal, but it works and clutch engages and disengages with no problem. Shifting is a lot smoother and more precise now. Might go back later and see if I can adjust or shim something to get some of the play out of the pedal.