Abstract: A device for assisting in vertically, longitudinally and laterally aligning two coupling members, one associated with a towing vehicle and the other associated with a towed vehicle, comprises a first sight member for positioning substantially perpendicularly directly over one coupling member and a second sight member for positioning substantially perpendicularly directly over the other coupling member, one sight member having a shaped portion permitting alignment to be achieved while the sight members are positioned over their respective coupling members. A memory device is provided for slidably mounting on one of the sight members to record the vertical distance of a coupling member from a common surface.