New seat foam

Pull your old wires (support bars) out of the old foam. If you don't have the support wires left, you can make them simply by using some heavy gauge wire. 9 ga or so.

They do not supply them with the seat foam.

https://video.search.yahoo.com/yhs/...=8a8c40af5d8271f187f0ee0a7778436a&action=view