Dorman 600-203XD 4WD Auto Locking Hub Assembly for Specific Ford / Lincoln Models (OE FIX)

Improved design - this 4WD locking hub has a reinforced shift dial that can withstand 40 percent more torque force than the factory design to help prevent it from breaking in the future Upgraded materials - features an improved diaphragm made of HNBR rubber with anti-ozone, anti-oxidation and UV-resistant additives for greater durability Rigorously tested - this design has undergone more than 15 performance tests, including tests for salt spray corrosion, extreme cold durability, thermal cycling, and vacuum durability Quality assured - backed by a team of product experts in the United States and more than a century of automotive experience Vehicle model years this part fits: Ford Excursion: 2000, 2001, 2002, 2003, 2004, 2005 Ford Expedition: 2001, 2002 Ford F-250 Super Duty: 1999, 2000, 2001, 2002, 2003, 2004 Ford F-350 Super Duty: 1999, 2000, 2001, 2002, 2003, 2004 Ford F-450 Super Duty: 1999, 2000, 2001, 2002, 2003, 2004 Ford F-550 Super Duty: 1999, 2000, 2001, 2002, 2003, 2004 Lincoln Navigator: 2001, 2002