I'm trying to remove the dropouts on my 85 Schwinn Traveler. These are stamped, slot style dropouts. I thought I would be able to remove them by heating the joint until the filler started to melt, but was unable to get any filler to flow. The stays were cherry red when I stopped trying. Is MAPP gas not hot enough, even though the metal was? Another thing, there are these little holes in the stays, one on each of the seat and chainstays on the inside of the frame about an inch from the dropouts. Is there some sort of pin in there keeping me from disassembling?