If the rubber hoses look cracked, I would replace them anyway. Like most people, I used to only replace them if they blew or were leaking. But last year I helped get a '54 F**d up and running. Everthing was fine with all new brakes until the owner pulled out of the driveway, drove a 1/4 of a mile downhill and stepped on the brake pedal. The front drivers flex hose blew out on the fitting and he had to ditch into the barrow pit. Took about 300 yards to stop. Ever since, I have encouraged everyone to just replace them if they show any small cracks at all. I know this doesn't apply directly to the topic, but seeing a big bolt without brakes isn't something you like to see.
