The Story
Replace and upgrade your front inner right hand side axle shaft in your 1999-2004 Ford Superduty with this 4340 Chromoly Outer Stub from Yukon. This axle shaft is designed to be an upgraded stock replacement utilizing 35 splines, 37.62" long, 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.