Spicer Front Outer Axle Stub Shaft & Vacuum Seal Kit for Ford F-250 & F-350 (Dana 50/60, 1998-2004, Single Side)

Replace a damaged outer yoke, eliminate stubborn vacuum leaks, and restore your front-wheel drivetrain configuration with this genuine Spicer Front Outer Axle Stub Shaft and Seal Overhaul Kit. Specially engineered to service a single side (fits left or right) of leaf-sprung 1998–2004 Ford F-250 and F-350 Super Duty trucks (as well as 2000–2005 Ford Excursion models) equipped with a monobeam Dana 50 or Dana 60 front axle, this premium package addresses structural wear and sealing failures simultaneously.

The outer stub shafts on early Super Duty platforms are prone to wear over time, often suffering from micro-fracturing across the u-joint ears or developing grooved seating surfaces where the main knuckle seal rides. When these surfaces degrade, the factory Pulse Vacuum Hub (PVH) system loses its air-tight vacuum, causing automatic 4WD dashboard engagement to fail completely.

This kit solves both issues by matching a factory-original, high-strength forged steel outer stub shaft with a complete sequence of premium Spicer original equipment seals and o-rings. Sourcing this pre-matched bundle eliminates the hassle of tracking down individual wear components, ensuring a drop-in mechanical fit and a reliable pneumatic seal.

Kit Highlights:

• Targeted Single-Side Maintenance: Packages 1 genuine Spicer premium outer axle stub shaft, 1 massive main outer knuckle vacuum seal, 1 inner axle tube oil seal, and the supporting wheel hub assembly o-rings.

• Forged Carbon Steel Shaft: Precision-machined outer stub shaft built to exact OEM tolerances, featuring hardened splines and a smooth, factory-ground seal journal surface to eliminate premature seal wear.

• Genuine Spicer OEM Quality: Every component is manufactured to strict original equipment specifications, guaranteeing structural performance under heavy load and a proper press-fit.

• Restores Automatic 4x4 Function: Includes the multi-lip outer hub vacuum seal required to re-establish the tight pneumatic isolation necessary for error-free dashboard 4WD engagement.

Vehicle & Axle Fitment:

• Make: Ford

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

• Years: Trucks: 1998, 1999, 2000, 2001, 2002, 2003, 2004 | Excursion: 2000, 2001, 2002, 2003, 2004, 2005

• Axle Profile: Front Monobeam Dana 50 & Dana 60 (Leaf Spring Front Suspension Configurations Only)

• Position: Front Outer Axle Assembly / Steering Knuckle Wheel Hub (Fits Left/Driver or Right/Passenger Side - Sold Individually)