power brakes for 40 ford

[rich b]

If you are capable, you could fabricate a bracket and mount a small dual diaphragm booster and master cylinder farther to the rear where the area between the frame rail and X rail is wider; then operate it with a longer push rod (for strength, I usually use DOM tube for long pushrods).

Another way (like back to the '70s) is a single master along with a hydrovac booster.