There is nothing more frustrating than being told that a simple puncture in the shoulder of a truck tire is unrepairable. After all, the difference between the location of a repairable puncture and one that is non-repairable is often measured in millimeters. For decades, the only puncture repairs that were allowed in the field had to be located in the crown area, which is the center of the tread approximately 1 to 1.5 in. from each edge. Injuries outside the crown area in the shoulder were ...

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