I have a 57 3100 with the spare tire cut-out in the drivers side rear fender. At some point in the trucks life someone has welded in a patch to fill the cut-out and of course it doesnt fit. I want to replace the entire frender with one that doesnt have the spare tire cut-out. Do they make new rear fenders without the cut-out or do I have to find a donor truck and if so what all years will work?