the hole in the trunk where the spare tire rides is rusted through on my 56,it looks like it comes out in one piece[sealer,weld...?] has anyone had any experience with this?was thinking fiberglassing it but maybe someone makes a replacement or could remove from donor car. hope to have my 56 customline on the road when summer hits,been 10 years since I drove it last! thanks

Remove the sealer then drill out the spot welds and it will come out.i have several good ones that i have removed from parts cars.  Carl   Ohio