This locking hub seal kit includes the seals required to help protect the hub's internal components from moisture and contaminants on specified vehicle makes, years and models when the hub is malfunctioning or has failed due to moisture infiltration. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford Excursion: 2000, 2001, 2002, 2003, 2004, 2005] - [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].