Reason I need them is kind of an embarrassing story. I was doing return lines. When I went to go put my injector lines back on, I couldnt get the front passenger side line to fit. so I tried bending it into place. Failed. So my temper got the best of me and I decided to jam the line into place and cross threaded the living hell out of the injector line to the injector. So I'm sure I messed up the threads in the process. And it leaked. (Truck still not running.) Then I realized why it wouldnt reach the injector... I slammed my hood in disappointment, but my hood wouldnt close. So I looked to see what was holding the hood up. Only to make me more mad, I found the "extender" thing that goes on that injector to make it reach the line. Felt stupid as hell that I forgot about that. And also one of the lines toward the firewall wouldnt fit quite right, so I jammed that one on too, probably crossthreaded it. So I figure I might as well replace them all.