fifth wheel truck tractor m275

Hi guys,
i found not so far from here finally 2 places where to purchase a complete Original fifth wheel plate assembly. but these are from 5 ton tractors (m52)...that brings me to my question, i have a reo m275 2 1/2 ton tractor....are those fifth wheel plates the same for both 5 and 2 1/2 ton trucks?

Thanks

Well the plates and king pins on both certainly seem the same up to a certain capacity.
And you can couple up to a variety of trailer using the wide selection of trucks.

Yes they are.