Yukon Gear & Axle YA W24160-YGL Axle KitAxle Kit Axle Kit; Dana 30 Reverse; Front; 30 Spline 4340 Chrome Moly; w Grizzly Locker; SPECIFICATIONS: Position: Front WARNING CA Proposition 65: No FEATURES: Fits Dana Spicer 30 In XJ; YJ And TJ Includes Inner And Outer 4340 Chromoly Axles; Spicer U Joints; Yukon Grizzly Locker; Carrier Bearings And Races 30 Spline Inner And 27 Spline Outer Yukon high performance axles are built with high tensile strength 4340 chromoly, use superior production