 The trams remained in service until 1973 when they were replaced by the TS Class 7 trams, following the merger of Graakalbanen into Trondheim Trafikkselskap, and the subsequent reorganizing of routes, so the Gråkallen Line was operated onwards along the Lademoen Line.No.5 is preserved as a heritage tram at Trondheim Tramway Museum, while no.