QUICK HELP NEEDED!! what is it?

[spongeidys]

we're redoing the brakeline on my truck that runs to the rear brakes. when we got to the back, we noticed this junction tying two lines together, but to me, it would seem easier just to bypass that because it doesnt seem to be doing anything other than tying those two lines together. so, do i have to run the lines in and out of the junction, or can i just bypass it and run one line straight back?

 

[pauly383]

I believe that adjusts the amount of fluid flow to the rear brakes based on load and trailer weight .

 

[dyeager535]

Correct

 

[spongeidys]

so if im not gonna be towing any trailers is it needed?

 

[AKbigsub]

Specifically, that is a load sensing proportioning valve. It allows more or less fluid to the rear brakes based upon the ride-height of the rear of the vehicle. Higher=less fluid=less braking from the rear=lower likelihood of rear wheel lockup. Lower=more fluid=more braking from the rear=all four wheels braking to help slow/stop a heavy load.