Update:

It has been several months and I need to update the status of my stuck tumbler.
It has been replaced! However replacing it was interesting. In the end I decided to use a dremel tool to cut the anti theft collar off of the tumbler to enable the removal of the tumbler.
I appreciate the suggestions from the group however my tumbler was stuck - lube, vibration and other options were tried several times without success. When I attempted to drill out the tumbler it resulted in a broken drill bit - and the broken tip was stuck in the tumbler. What a bone headed move...in the end persistence paid off