Thought I would post this to maybe help someone else this might happen to. When I first got my truck I had to change the fuel bowl heater and didn't know the pipe was reverse thread and broke it off. Called local diesel shop and they said to tear fuelbowl off and take to them to get it out. After drinkin about it I used an old gunsmith trick for casings stuck in a guns chamber. Thread a rat tail file down through the middle and the piece will screw right out.