I'm not sure what they do with those AD trucks, but for a complete brake job, I'd go with a dual system master cylinder.
Agreed. I just took my '50 3600 out for a shake down cruise and when I really had to step on the brakes, a line split and pedal went to the floor. The old saying on a single master cylinder, you lose one brake line you lose them all. I have a dual cylinder coming this week to replace the single along with all new brake lines.
