Abstract: A tiltable platform and container system employs a container on a tilted platform which when released will move rearwardly under the influence of gravity to an off-loading position. The container is loaded by a winch and cable attachable to the container to roll the container onto the trailer. The container is provided with individually vertically adjustable rear ground engaging means whose vertical adjustments are controlled by at least one pitch-sensitive switch which enables the container to remain substantially level during loading and unloading from a tilted platform.