Cannot remove the yoke off the output shaft

[MossRoad]

This is what i am talking about. This is the button that is missing.

Can you see the other side opposite of the button on yours?

Is there a hole on the other side, like in this video below, or is it solid?

 

[MESSMAKER]

Drive out what is remaining of the pin in the yoke. Just pot a 1/2 inch bolt about 3 inches long in it as a retainer. It will need a lock nut or a hole drilled in the end of the bolt so you can secure with a cotter pin. It works really well.