 The rolling stock was pained the same yellow and blue, but the coat of arms used by Trondheim Sporvei were not used on Graakalbanen.Instead of purchasing new rolling stock for the Gråkallen Line, the city trams were to start operating on the line.Trondheim Sporvei needed buses for the closing of the Singsaker Line, and made a deal with Graakalbanen, where the latter would purchase four new Büssing buses and rent them out to Trondheim Sporvei for the amortization cost, in exchange for renting excess trams.