Parking / Emergency Brake cables

Having moved recently to PA I am on the cusp of having my 68 Dart registered and sent through the rigorous vehicle inspection process.

The E brake / parking brake is the only thing left that I think will give me a failure, it is not totally shot mind you, but it aint that great either. The passenger side cable is frozen and I cannot adjust the front cable due to the bolt being frozen by rust.

The factory service manual is very helpful with the brakes, but it merely glances over a part of the process that has me baffled.

Removal of the cable.

I think I can compress the flanges on the end that attaches to the actual brake shoes bu using a hose clamp.

but the end that attaches to the car right before it meets the equalizer bar I can not quite figure out how to disconnect....

anyone have any experience in this?