I was thinking that because I need a replacement master cylinder I would update my 1 1/2 ton truck to a safer newer style double master cylinder. Does anyone know what year would be an easy install for my 1946 1 1/2 ton? I would like to keep the master cyl under the floor and I can make a new bracket but I would like to use some of the same linkage. I looked at the hydrovac unit in the tech tips but it looks like it would be a hard to find unit. Any ideas?