68 Dart GT 10" Front & Rear brakes

I'm a decade & 1\2 into a restoration. Lol. When originally took brakes apart I never noticed the wire in them had a spring in it. I Google it now and it shows nothing like what I have. Bewildered and not sure what to do. I'm not hooking the E-brake back up. I also noticed the new front brake shoes have a brass pin on 1 of the shoes.