Using OE-Quality Hub Assemblies For Ford IWE-Equipped Trucks Posted on January 29, 2024January 29, 2024 What is the most complex wheel bearing hub unit on the roads today? You might think it would be a supercar or electric vehicle. But, it is on the Ford F-150 equipped with 4WD. In 2004, Ford introduced the Integrated Wheel End (IWE) that could disconnect the hub from the axle. This function adds several new components not found on the typical hub unit.