You could try finding a bolt that would screw into tube, after the bolt bites into the tube take a vise grips and see of you can pull it out. You could also take a nice heavy piece of wire and make a U bend on one end, have the bend tight enough so it can be pushed into the tube. Then push it into the tube and work it around so it hooks on to the end of the tube, take a vice grip and pull it up. Good Luck, Don
