The ball joint part that goes on the headlight retracting arm. What is it called? Ball joint? Where might I be able to find one that bolts on and fits the retracting arm? I've been looking but havent been able to find one.

 

Retractor rods are available as replacement parts, but I was unable to find the ball studs.

 

I believe it's a 13mm ball stud but it might have to be somewhat hollow on the ball. There is 13mm everywhere but I don't think any of them will fit it.