The steel arms had bushes - thry only went to bearings for the alloy arms.
I reckon Vany's nailed it - monoshock DT250/400. Shock would probably be from the same bike.
That's odd. The yammy parts diagram shows bearings and all sorts in the swingarm pivot
.
So that makes the swingarm I have worth absolutely nothing and puts me on a search for the correct one
.
This project is starting to become frustrating
Edit : having looked at some parts diagrams, I reckon DT400D is very close to the mark, right down to the bushes (only) in the swingarm pivot.
Even the shock looks pretty close
Maybe someone has grafted the DT400D onto the back of this beast
Brake backing plate matches the swingarm also - something else to locate