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. . Yukon 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 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.. ,04,3/8,30spl,4340,9,9.39",9.4,98,AX:D60-9.38-30C,AXLE,D60,F250/F350/F450/F550,FORD,FRONT,OUTER,SHAFT,STUB,YA,. Yukon Gear Front 4340 Chrome-Moly Outer Stub Axle For Dana 50/60 30 Spline 9 3/8in Long. Yukon Chromoly Outer Front Axle for Dana 50 & Dana 60, 30 Spline, 9-3/8” Long . Yukon Chromoly Outer Front Axle for Dana 50/Dana 60; 30 Spline; 9-3/8in. Long. Stub Axle, 4340 Chromoly Outer For '99-'04 Dana 50 & Dana 60, 30 Spline.. D60 '98-04 F250/F350/F450/F550 FRONT 30spl 9-3/8" OUTER STUB 4340 . Heavy duty 4340 chromoly construction . Fits Dana 50 & Dana 60 differentials. Fits Dana 50 Dana 60 Differentials. Measures 9 3/8 in. Long. Measures 9-3/8” long. Chromoly Axle Shaft . Yukon Gear StubAxle. Front outer axle. YA W46106 . Stub Axle. 30 spline. 04-99 FRD

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