Superflex Coupling, 1-7/16", 5000, CTV-5SB, Passenger-Side. 1-7/16" Top Shaft (Gearbox-End) and 1-1/2" Bottom Shaft (Brush-End).
https://nswash.com/superflex-coupling-5000-ctv-5sb-passenger-side.html?searchid=38237&search_query=4000+0021
Superflex Coupling, 1-7/16", 5000, CTV-5SB, Passenger-Side. 1-7/16" Top Shaft (Gearbox-End) and 1-1/2" Bottom Shaft (Brush-End).
https://nswash.com/superflex-coupling-5000-ctv-5sb-passenger-side.html?searchid=38237&search_query=4000+0021