There is no booster behind the master cylinder. I have the under the driver side frame mount version. There is nothing damp or showing signs of leaking on the inside of the tires/wheels. so I didnt open things up and change the wheel cylinders. I just changed out the bleeder valves.
Vacuum check valve and reservoir tank? AH!!!! So there may be even some slight sliver of hope! I doubt it! But, at least it is something I can wish for as I wait for weather to clear and crawl under the old girl again. I know I am going to be looking at a bad booster.
So then the question becomes deal with a bad booster? Or look into upgrading the entire system?