Santerre, there is a brake lock system that locks the brake fluid pressure. This is for fire pumping work.
With the vacuum brakes(hydrovac) it is quite effective.
Yes, I agree, the fire truck designers were careful about safety, and potential accidents.
Ed, the brownie sounds interesting. I’m not a trucker, but the extra choice of gears could come in handy with the vintage 302 power I plan to keep in the truck. I believe these trucks ( the 3 ton GMC),were used over the road way back when and were considered competent at the time.
Does the brownie include an overdrive gear? I’d be inclined to think it backwards to gear up and then back down, so to speak, at the differential. Can you educate me on that? My main concern is to get a higher highway gear , and still keep this low range for hills.
Why I thought of a simple 2 speed.
Thanks for your input. This old girl really runs good, and I’m excited about the project!
