2007-2018 Dana 44 Rear Axle Shaft Assembly 32 Spline Chromoly (YA WAK-006)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 axle of unmatched quality and durability. Features 4340 rear axle kit Fits Dana 44 differential Kit includes two axles, wheel bearings, ABS rings, seals, studs, and lug nuts Fits both sides Double drilled: 5 x 5 and 5 x 5. 5 Heavy duty 4340