From what I understand, The hydrovac works with only the single pot MC. Some motorhomes had two hydrovacs. One for the front and one for the rear. I have my COE converted over to 4 wheel disks from a P30 chassis for the front and a chevy 3500 rear axle. The calipers are 3 3/8 inch bore. So I need to figure out what MC I need. Im thinking of using the same one as was in a chevy 3500 truck.
Still doing the research
