8-3/4 Rear brake drop hose to short

Where is the breather in the housing?
Is it on the tube or up higher on the hump

What year car
All stock, numbers matching '71 Demon 340. Breather is in correct spot on top of axle. Even though the connection between the hard brake line and the hose drop wasn't used properly, the bracket was still there. The top bolt in this pic shows where the bracket mounts. To the right of that bolt is a hole in the muffler bracket where the "finger" on the drop bracket goes.

Abody Muffler Hanger4.jpg