Actually, that IS a place to worry about as you can't regularly reach it with a pressure washer/hose and any salt/sand/mud will collect up there. I would suggest trying to get up there.
Actually, that IS a place to worry about as you can't regularly reach it with a pressure washer/hose and any salt/sand/mud will collect up there. I would suggest trying to get up there.... Not too worried about the top of the frame rails or the small contact areas where the bed meets the frame...