It was fine last November and then I parked it for the Montana winter. Been fighting batteries all spring and just ordered some new ones and when I was out there I seen fluid on the ground. It covered the leaf spring and axle. So, I take it that it drained almost all the fluid out. No fluid on top half of box or above. What could of blown out in -20 deg setting? I seen new boxes are a grand. When it stops snowing, I will go clean it off and add some fluid and get a better look.