The only effective way to get dual system capability on a rig such as yours is to install two medium-sized hydrovacs and plumb one chamber of the master cylinder to each one. Unless you adapt a huge booster to the pedal linkage and eliminate the hydrovac, the pressure developed by the primary master cylinder won't give you enough boost. Some motorhomes I've worked on had the double hydrovac setup, and they worked pretty well. If you're going to stay with the single big boost unit, there's no point in going to a dual chamber master cylinder.
Jerry
Last edited by Hotrod Lincoln; 03/09/2014 6:31 AM.
