Im looking for advice on a braking problem with a jeep. It is a 1967 jeepster commando. Original buick v6 turbo 400. It has been converted to front disc brakes. It has a good working vacuum booster with new master cylinder. From 60 mph i'd bet it takes a 1/4 mile to stop it! Brake hoses are good-- I even replaced them to try it. Rotors are not glazed. I thing a pressure gauge will be my next step. Back brakes are originals and will slide in rocks. Even backing up the front won't slide in rocks. I have checked ever inch of the original brake lines and there are NO crimps. But they are very small lines maybe 1/8 inch. Yes they are bleed completely.