74 duster control arms!!!

What do you mean by the smaller ball joint hole?

All 73 - 76 A body cars are large ball joint.

I'm in the process of getting a pair of 73-76 A body UCA's for sale.
Waiting on a fresh pail of Evaporust to arrive, to remove all the surface rust from the metal, then i take my pictures.

Your in Canada though, and thats the deal breaker, a lot of the times for USPS Priority Mail International.