Ouch man! My dad used to drive a '76 F250 as his daily driver,and the passenger floorboard rusted through pretty bad. He cut out the rusted part,sprayed it with sealer stuff to keep it from rusting again. Then he took two sheets of thin aluminum(IIRC,I was really young) and had about 6 inches extra around the entire hole,lined the outer inch or so of the aluminum with JB weld,and used a shitton rivets to make sure it wasn't going anyway while the JB cures.... Of course he put a peice on the top,and the bottom. Never had a problem since....that musta been or more years ago now...and once we put new carpet in,you can't tell
