You are purchasing new, complete, and fully assembled ATV axles, including both inboard and outboard CV/universal joints, as shown.Vehicle: 2012 Polaris 550 Sportsman 4X4Submodel: A12TN55FA X2 INTL A12TN55AA A12TN55AZ X2 A12DN5EFR TOURING EPS INTL A12DN5EAF A12DN5EAR EPS A12ZN5EAD A12ZN5EAH A12ZN5EAM A12ZN5EAO A12ZN5EAT A12ZN55AA A12ZN55AQ A12ZN55AZAxle Location: Rear LeftThe Sixity XTA Series Severe-Duty OE-replacement ATV/UTV axles are proven to deliver maximal durability and torque for extreme off-roading quads, 4-wheelers, and side-by-sides. Made from 4340 chrome-moly steel alloy for robust durability through the ultimate demanding terrain, Sixity XTA CV axles vastly outperform OEM axles in both quality and price.