Good used front wheel axle shaft with spacer and castle nut, it fits all these models

 

This Honda 44301-304-972 AXLE, FR. WHEEL fits the following models and components: 

Honda Motorcycle 1976 XL175 A Front Wheel / Brake Panel 

Honda Motorcycle 1977 XL175 A Front Wheel / Brake Panel 

Honda Motorcycle 1978 XL175 A Front Wheel / Brake Panel