Tailshaft bushing removal/install

It’s extremely common for the ears to be slightly bent or tweaked from someone incorrectly installing or removing u-joints at some point in time. This creates an unbalanced driveshaft and vibration also. The yokes can also have minimal wear grooves from u joint c-clips rubbing up against the inside walls of the yokes. All it takes is a millimeter or two of wear to create vibrations.