I'm sure there's something out there that will work, eve without a kit. Your truck did not have power brakes when new, and it stopped ok then. Pedal pressure had to be designed so even a little weenie driver could stop it. Knowing that, check in with your local FLAPS for specs on bore diameter of your stock unit and bolt pattern to the frame. Find a dual chamber master cylinder with the same bore size, and mounting hole spacing and you'll be in it. Disk brakes were an option starting in 67 for GM, and standard in front in 73. I would suspect your best bet would be something in that 67-72 range, but it will take some digging in books to find out. Running brake lines is easy. You'll basically split the system at the master cylinder. May have to buy some line and adapters, but your FLAPS should have that too. You can make them neater if you cut and flare them yourself, but not everybody has the tools to do so.
Devin
