My first thought about this RV was not considering the truck at all, but the 5ver being a toy hauler with a dry weight of 14K and only dual axles is not enough if your going to load it with toys, fuel, water, propane and added gear, I would avoid it for just that reason. As far as your trucks ability, your very close to being illegal per axle ratings of the truck, and the only way to know would be to weigh it combined, on a scale.