Posted 3/19/2014 11:16 (#3763025 - in reply to #3762080) Subject: RE: 1970 C-50 Brakes - we need some help
south texas
I had an old f600 that had the same issue. It ended up being a dirt dopper built a nest inside the vacuum booster vent hose that came up behind the seat. An old mechanic noticed it was not making the usual hissing noise when brakes were pumped or applied.