Replaced factory brake lines

[missionstreet]

To my amazement I found the long sections running from pass wheel to rear available by pickup for less than $100 from a local dealership (shipping would have been 300+ more via freight due to length).

 

After replacement and initial bleeding (including load valve) per FSM I'm getting very firm pedal with engine off but once started pedal is going to the floor, albeit stopping good by the time it reaches the end of its travel. 

 

I figure there's still alot of air to be bled but I can't understand the extreme discrepancy between having power assist and not. I also noticed (its dual circuit 4WD) one of the lines to the rear was completely empty and dry when I disconnected it. I believe it's the one coming through a splitter block off the master and not through ABS.