Smiths part No 2400/06 with a ratio of 7:11. Repaired by a specalist repair company who have been doing this sort of work for over 60 years and this enables us to provide an exchange service using original gearboxes. Note When fitting this gearbox ensure it tightens up correctly without binding, to this end you may need a copper/fibre spacing washer. Also ensure your speedometer input turns easiiy or the speedo gearbox input shaft will shear off which often happens with old speedometers! This  is an Exchange Service item only, we need your old speedo gearbox sending to us