What an ingenious way to keep a tail light in view! General Motors realized that with the tail gate in the lowered position the center tail light still had to be seen by the following traffic. At times the gate will stay lowered when longer freight is carried.
Therefore, the 5” round light is attached to a swing bracket. This bracket is moved by a ¼” vertical rod inside the tailgate. As the gate is lowered, the rod is moved by a hidden attachment on the edge of the body. Thus, the light is always visible!
These photos are of a 1953 Canopy Express owned by John Dunkirk of Southaven, New York.