Going to get the 69 Plymouth Fury inspected this afternoon I had power drum brakes..had to slam on brakes but not extremely hard...still had brakes get to DMV power booster not working (not good) At least I think that is what's wrong....pull out of DMV and no booster driving in traffic for 15 to 20 miles home..what's wrong with this thing could it just be air in the lines from sitting..checked the vacuum when I got home and has plenty...