{"product_id":"ford-f250-f350-super-duty-dana-50-60-front-axle-vacuum-seal-kit-1998-2004","title":"Spicer Front Axle Master Wheel End \u0026 Vacuum Seal Kit for 1998-2004 Ford Super Duty (Dana 50 \/ 60, Both Sides)","description":"\u003cp data-path-to-node=\"8\"\u003eRestore prompt Electronic Shift-on-the-Fly (ESOF) automatic 4WD engagement and lock out destructive trail grit with this genuine \u003cb data-path-to-node=\"8\" data-index-in-node=\"129\"\u003eSpicer Front Axle Wheel End Master Vacuum Seal Kit\u003c\/b\u003e. Curated as a complete, dual-side service package for \u003cb data-path-to-node=\"8\" data-index-in-node=\"234\"\u003e1998–2004 Ford F-250\/F-350 Super Duty\u003c\/b\u003e trucks and \u003cb data-path-to-node=\"8\" data-index-in-node=\"283\"\u003e2000–2005 Ford Excursion\u003c\/b\u003e 4x4s, this premium OEM seal bundle provides all the necessary heavy-duty multi-lip seals and o-rings to fully refresh both the driver and passenger side front wheel ends simultaneously.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eOn First-Generation Super Duty platforms, the automatic pulse-vacuum 4WD system relies entirely on a perfectly sealed wheel end environment. Over time, the primary inner knuckle seals degrade due to axle shaft rotation, extreme temperatures, and road salt intrusion. When these seals fail, the vacuum dropped by the ESOF pump bleeds directly to the atmosphere. This system vacuum loss prevents the automatic locking hubs from pulling into place when you flick the dash switch, leaving you stuck in two-wheel drive. Furthermore, failing seals allow water and mud to pass directly into your outer axle tubes, which accelerates wear on your internal spindle needle bearings and axle u-joints.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eThis original equipment manufacturer (OEM) master service package eliminates vacuum loss by bundling a pair of premium \u003cb data-path-to-node=\"10\" data-index-in-node=\"119\"\u003eSpicer main vacuum knuckle seals\u003c\/b\u003e with the updated outer axle tube dust seals and inner hub o-rings. Sourcing a genuine Spicer bundle ensures you receive specialized elastomeric compound configurations, advanced multi-lip sealing geometry, and exact factory dimensions that cheap aftermarket clones cannot match.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eKit Contents (Complete Set Services Both Driver \u0026amp; Passenger Sides):\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e(2) Genuine Spicer Premium Multi-Lip Front Axle Hub Vacuum Seals (Part # 50491)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e(2) Genuine Spicer Updated Front Outer Axle Tube Dust Seals (Part # 50381)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e(2) Genuine Spicer Wheel Hub Assembly Outer O-Rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-path-to-node=\"13\" data-index-in-node=\"0\"\u003eKit Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"14\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,0,0\"\u003e\u003cb data-path-to-node=\"14,0,0\" data-index-in-node=\"0\"\u003eComplete Left \u0026amp; Right Overhaul:\u003c\/b\u003e Supplies exactly enough factory-matched primary vacuum seals, tube dust boots, and hub o-rings to seal both front wheel ends simultaneously.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,1,0\"\u003e\u003cb data-path-to-node=\"14,1,0\" data-index-in-node=\"0\"\u003eRestores ESOF 4x4 Function:\u003c\/b\u003e Eliminates system vacuum drop-off, ensuring your automatic locking hubs receive adequate vacuum signal to lock in instantly when 4WD is requested.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,2,0\"\u003e\u003cb data-path-to-node=\"14,2,0\" data-index-in-node=\"0\"\u003eAdvanced Contaminant Exclusion:\u003c\/b\u003e Updated outer tube dust seals fit snugly at the end of the axle housings, blocking mud, moisture, and road brine from migrating down into the tubes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,3,0\"\u003e\u003cb data-path-to-node=\"14,3,0\" data-index-in-node=\"0\"\u003eGenuine Spicer OEM Quality:\u003c\/b\u003e Precision-molded by the vehicle's original axle manufacturing supplier to guarantee a flawless press-fit into your factory steering knuckles and wheel hubs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"15\"\u003e\u003cb data-path-to-node=\"15\" data-index-in-node=\"0\"\u003eVehicle \u0026amp; Axle Fitment:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"16\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,0,0\"\u003e\u003cb data-path-to-node=\"16,0,0\" data-index-in-node=\"0\"\u003eAxle Profile:\u003c\/b\u003e Solid Monobeam \/ Leaf-Spring Front \u003cb data-path-to-node=\"16,0,0\" data-index-in-node=\"49\"\u003eDana 50 and Dana 60 Axles\u003c\/b\u003e equipped with open knuckles and pulse-vacuum automatic hub configurations. \u003ci data-path-to-node=\"16,0,0\" data-index-in-node=\"150\"\u003eDoes not fit later 2005+ coil-spring front axle assemblies.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,1,0\"\u003e\u003cb data-path-to-node=\"16,1,0\" data-index-in-node=\"0\"\u003eFord F-250 Super Duty:\u003c\/b\u003e 1998, 1999, 2000, 2001, 2002, 2003, and 2004 4x4 truck models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,2,0\"\u003e\u003cb data-path-to-node=\"16,2,0\" data-index-in-node=\"0\"\u003eFord F-350 Super Duty:\u003c\/b\u003e 1998–2004 Single-Rear-Wheel (SRW) and Dual-Rear-Wheel (DRW) 4x4 truck models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,3,0\"\u003e\u003cb data-path-to-node=\"16,3,0\" data-index-in-node=\"0\"\u003eFord Excursion:\u003c\/b\u003e 2000, 2001, 2002, 2003, 2004, and 2005 4x4 SUV models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,4,0\"\u003e\u003cb data-path-to-node=\"16,4,0\" data-index-in-node=\"0\"\u003ePosition:\u003c\/b\u003e Front Outer Axle Wheel Hubs — Left (Driver) and Right (Passenger) Sides (1 Kit Services the Entire Front Axle)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spicer","offers":[{"title":"Default Title","offer_id":43562418864202,"sku":"PLAT-SPICER-KIT11","price":74.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/5560\/6858\/files\/12_887983ff-8274-49de-9b06-df9ed8e72350.jpg?v=1777722191","url":"https:\/\/platinumperformanceparts.com\/products\/ford-f250-f350-super-duty-dana-50-60-front-axle-vacuum-seal-kit-1998-2004","provider":"Platinum Performance Parts","version":"1.0","type":"link"}