I know this is such a simple job and I should know the answer by now, being a car guy since I have memories...replacing the front brake hoses on my '79 Power Wagon. It's pretty straight forward I believe, and I don't think any air would be introduced to the system, correct? I am not going to press and release brake pedal, so I should just lose a little fluid, and just need to add that back to master cylinder when done, and be good to go, right?
