Thanks folks. Actually I removed it prior to seeing the pictures posted and everything went smooth. In order to hold the new sofa in place I'll put wood screws through the bottom frame of the new sofa. That is how Winnebago mounted the initial couch. Also, if possible, I'll route the seat belts into the new seats. The pictures provided were excellent.
Army vet, 2017 Winnebago 31BE, Equinox toad, 1 spoiled rotten dog. CHF, roadmaster track bar, Safe T Plus steering, front Summo Springs.