C30 Load valve???

Hello Chevyland. I am in the process of rebuilding my brake system on a 1983 C30 3+3 Crewcab. I am upgrading to stainless lines and hoses. The question is, What and where is the "load valve"? My system is Disc-Drum with hydro-assist booster and I have a non-ajustable proportioning valve. This is located on a crossmember below the fan shroud. The new lines that I am loking at have 2 options, w/wout load valve. These are direct factory replacement so I need to know. My brake line comes off of the pass.-side framerail and connects to a brass T on a bracket above the rearend. off of the T are two hard lines running to my rear drums. It does'nt look like the is a load valve, but want to be sure. Thanks.

Nevermind, I figured it out. sssooo sawly.