DICMIC 4WD Auto Locking Hubs for Ford Super Duty 1999-2004 — Pair, Direct-Fit Replacement

DICMIC 2Pcs 4WD auto locking hubs replace OEM part 1C3Z-3B396-CB to restore automatic front-wheel engagement for compatible Ford and Lincoln Super Duty models.

These two automatic locking hubs are designed as direct-fit replacements for late-1990s to mid-2000s Ford Super Duty trucks and a few large SUVs. They swap in for worn or damaged hubs without complex modification, restoring the ability for the front wheels to engage and disengage automatically with the transfer case. Each hub is sold as a pair to refresh both sides of the front axle and help maintain balanced performance.

How do these automatic locking hubs work on my truck?

The hubs engage when the transfer case selects four-wheel drive, coupling the front axle to the hubs so torque reaches the front wheels. When you switch back to two-wheel drive, the hub's clutch mechanism slides out and allows the wheels to spin freely, reducing driveline drag and wear. This automatic action happens without manual intervention, so no hub tightening or twisting is required.

• Automatic engagement tied to transfer case 4WD position
• Internal clutch slides to lock or release the hub
• Restores OEM-style on-the-fly operation
• Reduces front axle drag when in 2WD

Which vehicles and part numbers are these hubs compatible with?

These DICMIC hubs are manufactured to replace part numbers 1C3Z-3B396-CB, 1C3Z3B396CB and 600-203 and fit specific Ford and Lincoln models from 1999–2005. Always verify your vehicle year, make, and model before ordering to ensure a correct fit. If you have a matching part number or one of the listed models, these hubs should be compatible as direct replacements.

• Fits Ford F-250, F-350, F-450, F-550 (1999–2004)
• Compatible with Ford Expedition (2001–2002)
• Compatible with Ford Excursion (2000–2005)
• Compatible with Lincoln Navigator (2001–2002)

How difficult is installation and what tools are needed?

Replacement is straightforward and can usually be completed without removing the wheel. Basic hand tools and a flat-blade screwdriver or prybar are all that’s required to remove the hubcap, retaining ring and old hub assembly. The new hub installs in the reverse order, making this a practical DIY job for a home mechanic with moderate experience.

• Remove hubcap with a flat screwdriver or prybar
• Pull out the retaining ring and slide out old hub
• Install new hub by reversing removal steps
• No wheel removal typically required

What benefits will I notice after replacing worn hubs?

Installing fresh locking hubs restores reliable 4WD engagement and reduces unnecessary drivetrain drag in 2WD. That translates to smoother front-end operation, potentially improved fuel efficiency and reduced wear on the front differential and axle components. Because the hubs operate automatically, you retain on-the-fly convenience without manual locking.

• Reliable automatic front-wheel engagement in 4WD
• Less driveline resistance and possible fuel savings in 2WD
• Lower wear on front differential and axle parts
• Convenience of automatic on-the-move operation

Who is this for: These DICMIC 2Pcs 4WD auto locking hubs are intended for owners of compatible Ford Super Duty trucks, Expeditions, Excursions and Lincoln Navigators who need a direct-fit replacement for damaged or worn hubs. Choose this pair if you want to restore OEM-style automatic locking, avoid frequent hub maintenance, and keep your front drivetrain functioning cleanly without modifying factory systems. Always confirm your vehicle year, make and model or the OEM part number before purchase, and contact us with questions for fast assistance.