For Sale: 5th Wheels / Paso Robles, Ca The Durango 1500 Is A True Half-ton Towable Fifth Wheel With All The Luxury Appointments Of A Much Larger Rv. The Visual Appeal Of Raised Panel Glazed Cabinetry And Three Designer Inspired Interior Decors Is Key To The Durango 1500s Attractive Interior. The Durango 1500 Ranges In Length From 27 10" To 34 6".