My frustration got the best of me and I ignored the shuddering as you can see by the dates on this post. During the last month as I drove the car, I paid very close attention to the behaviorial characteristics as the shudder came and went. After further research, and out of sheer frustration I inspected the flex joints and much to my surprise the front joint fasteners appeared to have slipped out of the semi-spherical notch they fit into. I am attaching some photos so you can see what I am talking about. There were no other signs of fatigue such as tears or other deterioration but the bolts attaching the flex joint appear to be very loose. Have I finally found what may be causing this violent intermittent shudder? Thanks, in advance, for any advice and opinions.

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