Use the RCV Performance Ultimate CV axles for replacement of the Dynatrac ProRock 44 u-joint axle shafts. Tests show the Ultimate CV axles to be 2X stronger than OEM axle shafts. They remain tough at straight and extreme angles important where the u-joints are the weakest. The axles allow for the smooth transfer of power to the ground by eliminating the binding of the u-joint. Works with large tires and vast amounts of power. Low maintenance with use off road or used on the street. Ultimate CV axles are backed with a lifetime limited warranty. This axle set is complete with right and left CV axle shafts, instructions, hardware, outer stubs, synthetic moly grease and SST seals. The standard coating is black oxide for corrosion resistance and important for salty roads. Use the custom axle configuration form or contact us for details.