6. During the many years of 2 1/2-ton axle manufacture, there have been three different kinds of axle joints-Bendix (shown), Rezepa, and U-joint (or Spicer) style. The technicians at Chuck's Trucks say that testing indicates that all work fine, but the U-joint style is the most desirable, and the most prevalent. It is what they prefer when they're preparing an axle for use. Owner Chuck Davis says that when the Bendix joint breaks, it releases all of the large bearings, thus creating a large amount of collateral damage to other components.