Thanks for you help. I'll look for a pic of properly installed mechanism and reassemble the parts accordingly.
I have never seen a good picture of rear Huck brake parts arrangement. The axle hub is always in the way.
You should be able to visualize what may be going on once you pull the drum back off. Its probably something simple which is easy to miss.
Its like a jigsaw puzzle where all of the pieces are the same shape.
