Gear box for 2003 Fleetwood Storm slide

[Christinejt]

I need a gearbox for my 2003 Fleetwood Storm. Living/dining room slide. The part number is GSO-23164B. I called “Fleetwood” and it is discontinued (RBW). They gave me a couple numbers and offered me the link for this forum to research. Does anyone know of a replacement part? Any suggestions? TIA