Bring your vehicle's 4 x 4 system back to life with the GELUOXI EBY-101431-0006 600-203 4 Wheel Drive Front Locking Hubs for Select Ford and Lincoln Models. When dirt, rust, or worn parts inside the hub prevent the mechanism from sliding in and locking, you can trust these replacement hubs for right and left front axles to restore your car's 4-wheel drive capabilities. Easy to install, these hubs are factory pre-lubed for an effortless integration with your existing system. Instead of accruing high prices from a dealer, this affordable alternative will save you from unnecessary hassle and over-spending. Keep your fuel consumption and front tire wear under control while simultaneously reducing highway noise by restoring your system like new. Compatible with 1999 to 2004 Ford F250, F450, and F550 Super Duty 4WDs, 2000 to 2005 Excursion 4WD, 2001 to 2002 Navigator 4WDs, and Lincoln 2001 to 2002 Navigator 4WDs. Replace your front axle locking hubs like a professional with the EBY-101431-0006 600-203 4 Wheel Drive Front Locking Hubs from GELUOXI.