I figured this out. The floor cage for the nut is welded to the cab floor support channel. There are two types of repair panels. One has the nut cage and the other does not. The floor support panel without the nut cage does not require the removal of the floors. The nut cage floor support panel will require removal of the floor because you will need access to weld the nut cage. The floor support panel with out the nut cage you just need to remove the spot welds and slip out from underneath the nut cage. So for who ever is repairing there floor support this is some good info.