The EZGO Medalist TXT Spindle Pin Tube Bushing is the forerunner in the fight against amber issues that lead to tire wear and toe problems. Let us elaborate a little to help you better understand. The golf cart bushing in question installs inside the spindle and houses the spindle pin bolt. That is EZGO's unique way of saying king pin bolt. OEM manufacturers love to add to everyone's confusion by calling the same part three different things. We promise we are not trying to contribute to that; we are bound by what they decide to name things.When this EZGO bushing starts to wear out, it can begin to damage other parts. Namely the upper and lower brass bushings that house it. As this happens, it is causing more and more weight to be applied inwardly to your spindle pin bolts. This causes a camber issue that will wear your tires out and constantly pull your toe adjustment out of line. Call Buggies Unlimited and get a few spindle pin volts coming your way.