I don't feel comfortable about that front cable running under the floor pan with nothing to protect it from freeway crap out to ruin your day!!!
Mark, I don't think any were ever replaced.....if they failed......
There is nothing wrong with the factory cables. What is wrong, is that most people do not understand the setup and how it works!!!!
MOST IMPORTANT!!!! ...is to install and adjust these cables with your car suspension loaded!!! You CANNOT do this job with the wheels hanging down while the chassis is on jackstands. The wheels must be supported and the body/chassis at rest for best results.
This is also why the smaller cable is important, to allow the cable to "equalize" from side to side via the pulley thing...
I know Steve Wilkenson had P-car cables made up for not an unreasonable price. Can we get Goose ones too is the question! ...and how many variations in length were made?!!!!
Steve