So as you wrote, it then would handle my 175 cu" Esslinger Ford with no worries. I knew about the so called "baby Atlas" Ford Capri rearaxle.
Or maybe a type of Volvo 240 ( or 244 ) wich is strong. Kind of like a Dana 44. Question is, what sort of investment to be needed.
Anyway, if this lil' English axle holds up to that , with of course in lightweight car, i am impressed.