Not-so-captive Cotter pin is a bit rubbed and bruised. It does have some thread stripped so I will get a new one anyway and keep this one for spares.
[Linked Image]
[Linked Image]

Lastly, the main culprit...the cork had completely detached and was shredded aside from being worn down. I wonder how I was getting any traction at all.
[Linked Image]

Hope the photos come out Ok as the lighting in my garage is a bit poor.