E-Brake help please

In 17 years of driving my S, I cannot remember ever using the E-brake. Actually, come to think of it, I bet I haven't applied an E-brake on any of my cars in 47 or so years, not counting the one time I needed it and it didn't work; go figure. I think that was about 1979. Mine worked in the S in 1999. It had to, to pass safety. I refurbished the cables. It took hours over days,to get those seized 1969 cables working again.
I had a box of about 6 different sets of cables from A-body cars I had parted out over the years. They were all from 67 to 73 cars and either 9s or 10s. I am pretty sure there were some that had shorter inner cables in them, and would not fit with my hardware. But I found two that did work, and that was why I was forced to make them work. That's what I remember, lol.