Proportioning Valve

You have to pay attention..............the photo you posted in the OP is not the same device as the one on ebay which IS a 73/ later prop valve, switch, and dist. block combination

All your original is ---------is a warning switch and distribution block. All the line go to it because there's a piston in there for the warning switch, here:

http://www.forabodiesonly.com/mopar/showthread.php?t=231861

http://www.forabodiesonly.com/mopar/showthread.php?t=189489

http://www.forabodiesonly.com/mopar/showthread.php?t=134889

http://www.forabodiesonly.com/mopar/showthread.php?t=182204



But I would NOT use a factory prop valve. I'd buy an aftermarket adjustable, and leave your old switch / distro block in place