So, I'm about to pull the abs pump or hcu as the fsm calls it. The ABS lines have been disconnected for almost 2 years now so its usless sitting there so I want it out. I've searched on here and on Mallcrawlin pretty extensively for one question and I still can't find it.

On the combination valve there's two leads...one for the front and one for the rear. Which one is which? On this (http://www.mallcrawlin.com/forum/showthread.php?t=5829) write up it looks like the lead closest to the front end of the zjis what he used for the front.

The fsm lables them as primary and secondary...which would lead me to think the primary would be the lead for the front. But the primary is the rearward lead opposite of what the link above used.

So which one do I use to feed the fronts and which one for the rear? Lastly, any reason why I can't just loop the reservoir hoses vs the cut and plug method I've seen used?