After removing the rocker trim to install rock rails I noticed water dripping out of a couple of the holes in the rocker panels which seemed odd as it hadn't rained in a couple of days and the rest of the underbody of the vehicle was dry. Upon further inspection I could see through the holes in the side of the rocker panel that the front and rear were filled with foam and the foam was sopping wet like a sponge. Does anyone know why there would be foam inside? Definitely not a place where you want water to collect and not drain out. I have seen many rusted out rocker panels.