Swapfile check out some mid 80's 60series in the
salvage yards .I have 2 that are equiped with dual
master cyl & Hydraboost they also have electric backup pump. About 2 years ago we swaped this system into a 1968 C60 worked excellent. Also some
F---s and IH's had this system. There is another
booster system out there that has a vacuum booster
before the Hyraboost these are mainly on school busses. I also owned a 80 F700 that had just a very large diaphram booster & dual master cly mounted on the firewall, this also worked well.
As far as using a disk master on a drum system as long as a residual pressure valve is used no problems will occur
Have A Good Day -----FERGY
