Triangulated 4-Link

I ordered a "super pivot" triangulated 4-link from suicideddoors.com, and it came with (2) 20 5/8 long bars and (2) 16 5/8 long bars. no instructions. I was wondering if someone could tell me how to install this setup. Do the long bars go straight? on the bottom? or what. im pretty much lost. I've looked at pictures of other trucks, and they are all different. some have the angled bars going from the center of the rear end out to the frame, others have them going off-center on the rear end to the center of a crossmember. blah blah blah. i just need some suggestions on how to properly install this.