Rear Brake hose Junction removal

maybes its just too darn hot out today, but having a hell of a time removing the rear hydraulic hose junction where it mounts on the axle tube, any suggestiong apart from a big up-n-down wrench?

I´m affraid to give any advice, because then, I´ll feel guilty if it snaps off. I´ve twisted off more bolts with extreme steady pressure, than I have with a tapping or jaring motion. I think you can get a socket on there? Six point socket, no extension, use the palm of your hand to tap the ratchet (or breaker bar) handle, a few times, oil and repeat (use a cheater bar if you have to). Sometimes jarring it in the tight (right direction) a few times helps get things moving also. I use a progressively harder jaring motion until it breaks loose. Working it too hard, to quick, can generate heat, which relaxes the temper and causes them to twist off, rather than snap.