Abstract: A ground working implement is provided defining an intended forward path of movement and including first and second sections arranged in side-by-side relation relative to said path. The sections each include ground working elements and ground engaging support wheels. A first of the sections includes structure for attachment to a prime mover and structure is provided for coupling the first and second sections together for transferring forward thrust from the first section to the second section, limited angular displacement of the second section relative to the first section about a first horizontal axis generally normal to the path of intended movement and angular displacement of the second section at least 45.degree.