Thank you for certain. When I checked at GPC I overlooked and did not see this part. Thank you for alerting me. It is now on its way to me.
Cocking axle is certainly the best descriptive label for this part. I will post photos on the restoration project as I go along.

Question: The firing pins are free floating without any means of retracting from the breech face holes. Did LeFever ever add rebound springs in this model? Again thanks.