Uses 1550 series universal joints
Yukon 4340 Chrome-Moly Front Inner Axle for '05-'15 F-250 & F-350 Super Duty D60, 38.93", 35 Spline, 1550 Series; Yukon 4340 Chrome-Moly Front Inner Axle for 05-15 F-250/F-350 Super Duty D60; 38.93in.; 35 Spline; 1550 Series
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.