Introduction Automatic hub is an important component used in four-wheel drive vehicles. There are two types of joint hub systems, one is automatic type and the other is manual type.Feature: -Direct replacement -Built to strict quality control standardsSpecifications Auto Locking Hubs Fits For4WD (Four Wheel Drive) Models Only Application for: For Ford Excursion 01-05 For Ford Expedition 01-02 For Ford F250/F350/F450/F550 Super Duty 99-04 For Ford Lincoln Navigator 01-02 Replace OEM Number: 600-203, 1C3Z-3B396-CB Place on Vehicle:Front Leftor Right Operation:Automatic Condition:Brand New Warranty:2 YearPackage Includes 1x Locking Hub Code:MGGRP Authority IDMXR02FXSY NoticeCalifornia Prop 65 Warning NoticeCalifornia Prop 65 Warning Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.