<<<------click on my camera I have some pics of just what hes sayin about not sealin the back o the fender up .The shot is of a welded patch and the fender emblems and not having sealed on the back(big no no just ask Bob) these shots of the fender are with brazing the holes closed and not sealing the back. I can only imagine what the front would have looked like with just bondo. The holes would have been as big as the rust spots on the fender !!!