Technician Ernie Fry at Associated Truck Parts in Gilbertsville, Pa., uses a special tool to press out the u-joint cross, so the parts will fit tight when reinstalled. Experienced Class 8 tow truck ...

Early ideas of universal joints (or U-joints) have dated back thousands of years and seem to originate from multiple sources. However, about a century ago, a young engineering graduate, Clarence W.