In 1957, a flyover connection opened between the East 180th Street station of the White Plains Road Line and the Dyre Avenue Line, enabling through service by trains from the 2 route from Manhattan to Dyre Avenue. At the same time, the former NYW&B station was closed and the off-hours Dyre Avenue Shuttle rerouted to the White Plains Road Line station. These shuttles were initially labeled 2 like the full-time service but were later signed as . Effective April 18, 1965, the Dyre Avenue Line was instead served by 5 trains at all times. The line is still operated as a shuttle late nights, labeled as part of the 5 route.