i'm also interested in an definite answer to the 3 hole rack hook up. From what i've gathered the upper most hole is for the reservoir. The middle hole is the high pressure from the pump and the lowest most closest to the front of the vehicle is the low pressure and can be capped off with a m14x1.25. I cannot confirm the hookup though, because i've seen pictures that contradict each other and the fsm isn't yielding any answers. I've searched searched and searched but all the threads end or just leave me more confused right about the time you think you've found the answer.