Spicer Upgraded Front Inner Axle Shaft Oil Seal Master Kit for 1998-2004 Ford Super Duty (Dana 50 / 60, Pair)

Stop front differential fluid leaks, prevent costly gear oil migration, and safeguard your heavy-duty 4x4 drivetrain with this genuine, Upgraded Spicer Front Inner Axle Shaft Oil Seal Kit. Specifically bundled as a dual-side replacement for 1998–2004 Ford F-250 to F-550 Super Duty trucks and 2000–2005 Ford Excursion models, this package refreshes the primary internal fluid barriers located right next to the differential carrier.

On solid-axle Ford platforms, the front inner axle seals live deep inside the center pumpkin casting. Over high mileage, heavy commercial fleet service, or rough trail use, the factory-style rubber lips can harden, crack, or twist out of place. Furthermore, during routine front-end service—such as a U-joint replacement or outer stub shaft swap—the sharp splines of the long inner axle shafts can easily slice or tear the delicate seal as they are slid back into the housing. A compromised inner seal will allow heavy gear oil to weep continuously down the axle housing tubes, draining the differential reservoir and risking severe gear starvation while contaminating your outer knuckles.

This original equipment manufacturer (OEM) replacement package features Spicer's upgraded multi-lip design, which boasts an enhanced outer rubber-encased metal shell and specialized dirt-exclusion boundaries. Sourcing genuine Spicer components guarantees exact original manufacturing blueprints are met, offering the precise structural fitment and rubber durometer necessary to withstand the heavy rotational friction of your front axle shafts.

Kit Contents (Services Both Driver & Passenger Sides):

• (2) Upgraded Premium Inner Axle Shaft Fluid Oil Seals (Part # 2019816 / 50491-U)

Kit Highlights:

• Upgraded Multi-Lip Protection: Features an enhanced design over original factory seals, utilizing advanced rubber compound engineering to improve fluid containment and resist tears during axle re-insertion.

• Complete Dual-Side Bundle: Supplies both inner tube oil seals to completely service both the driver and passenger sides of your front axle housing center section.

• Genuine Spicer OEM Quality: Manufactured by the vehicle's original equipment axle supplier to guarantee matching tolerances and robust structural longevity.

• Prevents Differential Fluid Starvation: Locks your high-viscosity gear oil safely inside the differential housing center pumpkin where it can continuously lubricate your ring, pinion, and carrier bearings.

Vehicle & Axle Fitment:

• Axle Profiles: Open-Knuckle Solid/Monobeam Front Axles: Dana 50 and Dana 60 configurations.

• Ford Models: 1998, 1999, 2000, 2001, 2002, 2003, and 2004 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, and F-550 Super Duty 4WD trucks, alongside 2000–2005 Ford Excursion 4x4 vehicles.

• Position: Front Inner Axle Housing Tubes — Left and Right Sides (Located immediately adjacent to the internal differential carrier)