Chromoly Full Float Rear For GM 10.5/11.5 Diff 35.5 Cut To Length 14T 10.5 Inch & 11.5AAM GM 30 Spline (30.5 Inch -35.5 Inch ) 8x3.563 Inch Cut-To-Fit Full Float SHAFT4340 Yukon Gear & AxleYukon performance axles are built with high tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature advanced 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