8.8 swap

Ok another question maybe I'm a little dumb tonight but for the life of me I cant figure out the brake lines on the rearend I know the right hose has the metal line that connects to the left hose does the metal line coming from the master cylinder go in the left has as well? Or is there another hose that goes from the main line to the left hose ?

The one steel line comes back from the master and goes into a rubber line above the rear axle. That rubber line goes down to the axle and slits with a T or Y fitting and runs to each rear wheel.