Rear brake line ??'s

What exactly do you do w/ the proportioning valve in the back when you notch the rear? move it or get rid of it? and how do you go about it. Any good pix will help too thanx!

anyone?

i got rid of it. well it never had it since i bought it. off the booster the 2 lower ports went to the pass and driver side. the top port i wan to the rear.when i ran the line to the rear i got a flex line that had a tee on one end so it ran form right to rear side.

if im not mistaken the thing above the rear end is just to adjust the flow depending on the load you have in the rear. if you dont plan on hauling a load of gravel you can remove it.