The Stovebolt Site Forums The Shop Area Driveline Dual master cylinder conversion '58 1/2 ton short stepside

Thanks for the replies. I'm using the stock drum/drum system with the original size wheel cylinders. I bought some fittings to try to figure out the port sizes, but that was not conclusive, maybe due to thread pitch differences. Any way the smaller MC port was a fit using a 1/4 fuel line that had a 1/2 fitting by my measurement.