That's a good example of what can and will happen when something mechanical is known to be going bad and a person just keeps on driving the vehicle for hundreds of miles anyway.
Are we using JDCH for the right application? This grease is not a universal product. It was designed for farm equipment. I'm only asking the question and not condemning.
When one watches the video of how it works (https://www.youtube.com/watch?v=UEwk_sYP6A8) and hears the description it looks like it would be ideal for the U-joint cavity. It just all leaked out of mine.