Chromoly Rear Dana 44 30 Spline 32 Long Cut To Fit D44 30 Spline 4340(26 Inch -32 Inch cut To Length) Triple Drilled Rear (Not Scout Or Wagoneer) Yukon Gear & AxleYukon high performance axles are built with high strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature induction coil heat treating to create an axle of unmatched quality and durability. Yukon high performance axles are built with high tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature advanced induction coil heat treating to create an