Anyone got an idea on where I can find out tech info about my military trailer? I stoped by a big truck repair shop today and had them look at my trailer's brake system today and he was baffled. Looks like air over hydraulic , buttt?? where the hell do u put the hydro fluid.. and how do the brakes release once applied (mines not releasing till I let the air out) etc etc. etc.

M103A former generator trailer.

PS. My Mog pulls it GREAT. Just would like to have the use of the trailers brakes too. Stopping is not bad, but little help would be nice.