1970 Dart Swinger FINALLY UNDERWAY

You're right I didn't even notice it was in the same place as the wrist pin! Silly me :banghead:
It also looks to be about the same size as the wrist pin like it contacted there, could it have floated out at one time?

Checking out the piston, it doesn't look like it has any retaining clips for the wrist pin, here's some pictures I took unless I'm missing something but all of the pistons are the same way with no clips. Press fit/semi floating pins looks like.