I'm replacing quarters, and need to also remove the door jambs. I'm planning to lap weld the good quarters and attached door jambs/wells in one fell swoop. I just need to remove the brass weld spots at the top of the quarter where it welds to the door jamb, and where the quarter end welds to the back panel - that welds to the taillight panel. Can I use a propane torch? It took forever to remove the cowling because of those freaking welds. Eric.