The brake proportion thingy ma jig

That block thing where the brake lines run into ( two in and two out) that is mounted on the frame. I am confused which side is the high presure side and the low pressure side. Or easier yet does the brake warning switch point to the front or back?

Senior member is right!!! I thought I was the only one to use that term (thingamajig). You are talking about the distribution block widget that bolts to the frame underneath the brake cylinder thingy right??? LMAO
The switch goes to the rear. The front outlets are for the front brakes the rear are for the rears. Watch your lines from the master some cross over some do not.
TOFIC