Looking for help, or ideas.

Dana67Dart said

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wouldn't the off-center alignment washer prevent most if not all of that unless the bolt and washer was able to rotate and rotating?

Easy to check, put a wrench on the bolt head and see if the bolt -nut-off center washers rotate as a unit with less the torque spec (65 ftlb torque)

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You are correct, assuming that the tabs to hold the eccentrics aren’t damaged the bolt has to spin in order for the UCA to move.

But they should rotate with a lot less than the required torque spec. And the forces from the tires, especially if the toe or other alignment settings are out of wack, are enough to spin the bolts by pulling on the UCA if the bolts aren’t actually clamping they eccentrics onto the mounts.

It also depends on how wrong the thread location is, because the eccentrics may not be in proper contact with the tabs that will force them to rotate.