I was adding new calipers and rotors on my IROC with rear disc brakes and noticed that the drivers side Ebrake cable doesn’t move/retract when I apply my Ebrake. The passenger side does. I’m not familiar with the system and being that it’s an automatic I’ve never used the Ebrake. Ive read in the past that the lines rust and if they do and u apply the brake they can freeze your caliper? My question is could it be that it’s just the drivers side cable that’s bad and I can just replace that and it will work? How hard is it to replace? I have a spare rear axle with that cable attached. If I pull on it and it extracts can I just swap it out? Thanks in advance. Again I’m not familiar with the whole set up