Image Item No. Description By  3184  Plate, Modified 1 x 4 with Tow Ball Catalog: Parts: Plate, Modified 21  3183b  Plate, Modified 1 x 4 with Tow Ball Socket, Long, 4 Slots (8mm Socket Length) Catalog: Parts: Plate, Modified 14  967  Plate, Modified 4 x 8 with Trailer Hitch Pin Catalog: Parts: Plate, Modified 1