Many years ago, I had a 1994 Dodge Ram 3500 CTD with the Jacobs Rambrake on it. I towed a 32 foot triple slide fifth wheel with that truck, over the Continental Divide, the Cascades, and the Sierras. That Rambrake was the greatest thing since sliced bread on the downgrades! It was hooked up in the normal truck vacuum system, and the vacuum actuator worked great, never a problem. The on/off switch was mounted on the dash. That was not a problem since I turned it on and left it on nearly all the time. the throttle switch controlled when the brake actuated; only at the idle position. As soon as the throttle was advanced, the brake shut off.
I wish I had the exhaust brake on my current truck, but the budget won't handle it. Maybe if we get rid of the motorhome and get a travel trailer of some kind...
