4WD Auto Locking Hub Replacement for 1999-2004 Ford F250 F350 F450 F550 Super Duty 2000-2005 Ford Excursion 2001 2002 Lincoln Navigitor Expedition

OEM replace part number 1C3Z-3B396-CB600-203. Compatible with Ford F250/F350/F450/F550 4WD 1999-2004 Ford Expedition 4WD 2001-2002 Ford Excursion 4WD 2000-2005 Lincoln Navigitor 4WD 2001-2002 Function The most common problem with automatic locking hubs is the hub wont engage.Mud rust or worn parts inside the wheel will prevent the mechanism from sliding in and locking the wheel. Anything that restrains the internal mechanism prevents it from sliding and releasing. The most obvious symptoms may be increased fuel consumption increased noise on the highway and / or increased wear on the front tires.