Tim's link list Morgan 4/4 1.6 1968 on, so given it also lists correct diameter and splines and mentions type 9 5 speed box as fitted to Sierra. Would have thought that clinched it.

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone