[dmjlambert]

I did a disc swap on the front for my 69 CST/10, using 71 spindles and brakes and steering center link, new ball joints and tie rods for 71-72, new 71-72 steel front brake lines, new 69 front to rear and rear steel brake lines, a used 71-72 combination valve that I sent for rebuild to White Post Restorations, and a manual disc/drum master cylinder NAPA part M36280, and good condition restored 71 drum brakes for the rear. The brakes feel quite good and don't take very much pedal effort. I'm glad I did manual brakes.

I have heard glazed brake shoes/pads/drums/discs can make stopping effort bad. I would inspect everything and rebuild the rear drum brakes, and replace all hard lines and hoses. I do like going with disc brakes in front because the truck stops very straight. With drum brakes in front, unless they are perfectly adjusted, will cause swerving with urgent braking.