1973 duster wiper assembly

I have a 1973 Plymouth duster. Replacing things as I have the car completely apart, purchased a new wiper motor. My car has the wiper arms, motor. And the small lever that connects to the wiper motor. I am missing the "linkage" or transmission linkage that connects the motor to my wiper arms. I have searched online for replacement parts and I cannot find them. Could someone refer me to
Maybe a parts distributor who makes them, or if someone has a set for
Sale please give me information. Even aftermarket part numbers are fine, any help in the right direction is appreciated and I thank you guys ahead of time.