{"product_id":"ford-super-duty-dana-50-60-inner-knuckle-o-ring-dust-seal-kit","title":"Spicer Front Knuckle Hub O-Ring \u0026 Axle Dust Seal Kit for 1998-2004 Ford Super Duty (Dana 50 \/ 60, Single Side)","description":"\u003cp data-path-to-node=\"7\"\u003eRestore your Electronic Shift-on-the-Fly (ESOF) automatic locking hubs, block invasive trail debris, and protect your front-end components with this genuine \u003cb data-path-to-node=\"7\" data-index-in-node=\"157\"\u003eSpicer Front Knuckle Hub O-Ring \u0026amp; Axle Dust Seal Kit\u003c\/b\u003e. Specifically engineered to refresh the steering knuckle sealing boundaries on \u003cb data-path-to-node=\"7\" data-index-in-node=\"289\"\u003e1998–2004 Ford F-250 to F-550 Super Duty\u003c\/b\u003e trucks, this single-side refresh package replaces deteriorated, leaky vacuum seals and worn dust boots.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eOn classic Ford Super Duty 4x4 platforms, the automatic front locking hubs rely entirely on an airtight vacuum environment inside the steering knuckle to pulse-actuate 4WD engagement from the dashboard. Over years of service, temperature fluctuations, and exposure to road salt, the large outer vacuum hub O-ring dry-rots or cracks, introducing a persistent vacuum leak that stops your automatic 4WD from functioning. Simultaneously, the outer axle shaft dust seal decomposes, leaving a gap that permits abrasive trail mud, moisture, and road grit to penetrate the axle tubes and wear out your inner axle components.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eThis original equipment manufacturer (OEM) service kit provides a factory-correct overhaul for one front steering knuckle station. Sourcing genuine Spicer components guarantees exact original manufacturing blueprints are met, offering the precise rubber elasticities and dimensional tolerances required to maintain a persistent airtight vacuum seal under extreme steering deflection.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eKit Contents (Services One Steering Knuckle Side):\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e(1) Premium Outer Wheel Hub Vacuum O-Ring (Part # 41766 \/ 701114)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e(1) Outer Axle Shaft to Tube Dust Boot Seal (Part # 50381)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e(1) Inner Wheel Bearing Hub Assembly Backing Spacer \/ Seal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eKit Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eRestores Automatic 4WD Vacuum:\u003c\/b\u003e Replaces the critical large-diameter outer O-ring to seal your vacuum system, bringing your dashboard Electronic Shift-on-the-Fly (ESOF) automatic hubs back to life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eGenuine Spicer OEM Engineering:\u003c\/b\u003e Formulated by the vehicle's original equipment axle supplier to guarantee matching factory rubber durometer ratings and precise dimensional fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eImpenetrable Dust Barrier:\u003c\/b\u003e The included outer axle shaft seal forms a tight physical shield at the end of the axle tube, keeping out highway water, mud, and abrasive grit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,3,0\"\u003e\u003cb data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"\u003ePrevents Costly Hub Swaps:\u003c\/b\u003e Replacing worn-out seals early prevents dirt contamination from chewing through your expensive front wheel bearing hub assemblies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb data-path-to-node=\"14\" data-index-in-node=\"0\"\u003eVehicle \u0026amp; Axle Fitment:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"15\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,0,0\"\u003e\u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"\u003eAxle Profiles:\u003c\/b\u003e Open-Knuckle Solid\/Monobeam Front Axles: \u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"56\"\u003eDana 50 and Dana 60\u003c\/b\u003e configurations with vacuum-operated automatic locking hubs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,1,0\"\u003e\u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"\u003eFord Models:\u003c\/b\u003e 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.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,2,0\"\u003e\u003cb data-path-to-node=\"15,2,0\" data-index-in-node=\"0\"\u003ePosition:\u003c\/b\u003e Front Steering Knuckle Wheel Station (Fits Left or Right Side — 2 Kits Required per Vehicle)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spicer","offers":[{"title":"Default Title","offer_id":43562451468362,"sku":"PLAT-SPICER-KIT210","price":112.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/5560\/6858\/files\/12_fac5caca-7a90-4ffa-a23a-7212ab2bba6e.jpg?v=1777723185","url":"https:\/\/platinumperformanceparts.com\/products\/ford-super-duty-dana-50-60-inner-knuckle-o-ring-dust-seal-kit","provider":"Platinum Performance Parts","version":"1.0","type":"link"}