Slow going on the bodywork but slowly making progress. I've been looking at the brakes and I don't like the single master cylinders the 66 and older trucks came with and would like to update to a 67 or newer double style. For the time being I won't be getting into disc or even power brakes, I just want a simple replacement of the master cylinder for safety reasons. Truck is a 66 GMC 1/2 ton with manual drum brakes. Has anybody done the same swap and what did you use?
