Spicer Front Inner Knuckle O-Ring & Axle Dust Seal Kit for Ford F-250 / F-350 Super Duty (Dana 50/60)

Protect your front axle assembly from harsh trail conditions and maintain dependable four-wheel-drive operation with this genuine Spicer Inner Knuckle O-Ring and Axle Dust Seal Kit. Specially curated for Ford F-250 and F-350 Super Duty trucks equipped with Dana 50 or Dana 60 front axles, this kit includes the critical sealing components required to service one side of your front drivetrain.

Heavy hauling, mud, road salt, and debris put constant pressure on your truck's front vacuum hub sealing system. Over time, the outer dust seals degrade and allow grit to penetrate the axle tubes, while hardened or torn inner knuckle o-rings cause vacuum leaks that prevent your automatic 4WD hubs from locking into place. This premium service bundle replaces those high-wear components with trusted Spicer OEM engineering, ensuring a factory-grade airtight seal and smooth component rotation.

Kit Highlights:

• Essential Maintenance Bundle: Contains the precise inner knuckle housing o-ring and outer axle shaft dust seal required to overhaul a single side.

• Genuine Spicer Engineering: Manufactured from high-grade synthetic elastomers and specialized compounds to withstand high thermal loads and resist degradation from grease and gear oil.

• Restores Automated 4WD: Ensures a reliable vacuum seal within the steering knuckle, preventing common automatic Pulse Vacuum Hub (PVH) engagement failures.

• Direct Application Fit: Precision-molded to fit seamlessly inside standard monobeam Dana 50 and Dana 60 front axle configurations without any modification.

Vehicle & Axle Fitment:

• Make: Ford

• Models: F-250 Super Duty / F-350 Super Duty (4WD Models)

• Axle Profile: Front Monobeam Dana 50 & Dana 60

• Position: Front Steering Knuckle / Axle Shaft (Fits Left or Right Side - Sold Individually)