yah it ended up being a PITA, needed a double flanging tool to do it after trying many things including soddering it together i took it to a shop (called 4 and they couldnt do it) finally one had a 2000 dollar machine to flange the ends of the 3/18ths line and connect them, i brought them the lines and still paid them 110$ just for the labor what a PITA, never throw stuff on ur brake hard lines if ur interior is stripped they will break. it was a lesson learned any way