TILT BRACKET PIN FALLS OFF ON BUMPY ROAD, LOSING LOAD ON FREEWAY NOTIFIED COSTCO SELLER, CARLA ROBLES 800-409-1099 AND JOHN BANKS, BANKS CORP. 219-389-5400. THIS IS A SERIOUS MATTERS WHICH NO ONE SEEMS TO CARE. DO NOT RETURN CALLS EXCEPT FOR CARLA ROBLES. ONE VEHICLE WAS DAMAGE ON FREEWAY WHICH I WAS LOADED WITH LIGHT LUMBER. ALMOST LOST TRAILER ON FREEWAY. A BETTER SAFETY PIN IS REQUIRED.