Brand New 7290 U-Joint Failure

Locomotion said

If the u-joint has a grease fitting in a "corner", in between the u-joint caps, it needs to be in compression as the driveshaft turns....

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@Locomotion How does this stay "in compression" during operation....

I'm guessing the driveshaft (pictured) would be turning this setup CW (facing the pinion yoke)..and not be correct? Ie drive force is pulling the weakened zerk fitting side apart? This one seems *** backwards!