So why cant a surge brake actuator be used ? I know they can be had around the $100-150 range.
i'm new to all this, but as I understand it, surge breaks are pure hydraulic... if the lunette isn't being pulled forward by the truck it shifts aft, engaging the hydraulic break harder as it goes further aft...
The M105 has air breaks that actuate hydraulic breaks, so if one was to put a surge break in it would have to replace the air portion...
Having never seen the M105 in person, we'd need to know where the diaphram that converts air to hydraulic pressure is and interface the surge controller there... might be possible... I couldn't tell you.
Again I'm just speculating and waiting for an expert to weigh in.
I'm glad that the M105 I bid on by just seeing a bigger gross weight and not understanding they were airbrake trailers was just out bid... I'll shop around for M101's now seeing I've got a civie 2500HD truck with a solid electric break controller, and looking for a M1009 as well...
I'd really like to see a trailer FAQ as sweet as the Duece's faq at the top of the Duece forum...