{"product_id":"inmotion-ws51098-wheel-seal-rear-rear-inner-or-rear-outer","title":"InMotion WS51098 Wheel Seal - Rear, Rear Inner or Rear Outer","description":"\u003ch2\u003eInMotion WS51098 Differential Pinion Seal\u003c\/h2\u003e\u003cp\u003eThe InMotion WS51098 is a nitrile differential pinion seal built to keep contaminants out and gear oil in. With precise dimensions and a tight sealing profile, it supports reliable rear axle sealing for a wide range of Ford, Lincoln, Mercury, and Buick applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNitrile sealing material for dependable fluid resistance\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.5 in; shaft diameter: 1.5 in\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.506 in; housing bore: 2.502 in\u003c\/li\u003e\n\u003cli\u003eThickness and width: 0.437 in\u003c\/li\u003e\n\u003cli\u003eEngineered for rear differential pinion sealing\u003c\/li\u003e\n\u003cli\u003ePart number: WS51098\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eInMotion WS51098 is a precision-made wheel seal used as a differential pinion seal in rear axle applications. The nitrile sealing material is selected for its ability to maintain a secure barrier against moisture, dirt, and road debris, helping protect sensitive internal differential components. This seal is a direct-fit style solution for many classic rear axle setups, including Ford F-100, Ford Bronco, Ford LTD, Lincoln Continental, and Mercury Marquis applications that use the specified ring gear or axle configuration. The part number WS51098 is also useful when cross-checking service records and ordering the correct rear pinion seal for restoration or maintenance work.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear differential oil leaks at the pinion seal\u003c\/li\u003e\n\u003cli\u003eContamination entering the differential housing\u003c\/li\u003e\n\u003cli\u003ePremature wear from moisture and debris intrusion\u003c\/li\u003e\n\u003cli\u003eLoss of sealing integrity on aging axle assemblies\u003c\/li\u003e\n\u003cli\u003eService issues on rear axle rebuilds and restorations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify shaft diameter, housing bore, and seal width before installation. Confirm the axle or ring gear configuration listed in the fitment data, since many applications vary by axle rating or ring gear size. Clean the sealing surface thoroughly and inspect the pinion yoke or shaft for wear before installing the new seal. For best results, match the seal to the exact rear axle specification shown for your vehicle.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eInMotion manufactures this seal with precision dimensions and nitrile sealing material to support consistent fit and sealing performance in the listed rear applications. Confirm fitment against your vehicle’s axle configuration before ordering.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1980-1983 Ford F-100, rear, with 2,800lb axle(s)\u003c\/li\u003e\n\u003cli\u003eFits 1969-1979 Ford E-100 Econoline, rear, with 3,300lb axle(s)\u003c\/li\u003e\n\u003cli\u003eFits 1975-1979 Ford E-100 Econoline Club Wagon, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1975-1979 Ford E-150 Econoline, rear, with 3,300lb axle(s)\u003c\/li\u003e\n\u003cli\u003eFits 1975-1979 Ford E-150 Econoline Club Wagon, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1970-1979 Ford F-100, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1967-1968 Ford F-100, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1965 Ford F-100, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1975-1979 Ford F-150, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1971-1978 Ford LTD, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1966-1977 Ford Bronco, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1953-1963 Ford F-100, rear\u003c\/li\u003e\n\u003cli\u003eFits 1957-1959 Ford F-350, rear\u003c\/li\u003e\n\u003cli\u003eFits 1953-1955 Ford F-350, rear\u003c\/li\u003e\n\u003cli\u003eFits 1953-1955 Ford F-250, rear\u003c\/li\u003e\n\u003cli\u003eFits 1978-1979 Lincoln Continental, rear\u003c\/li\u003e\n\u003cli\u003eFits 1970-1973 Lincoln Continental, rear\u003c\/li\u003e\n\u003cli\u003eFits 1958-1961 Lincoln Continental, rear\u003c\/li\u003e\n\u003cli\u003eFits 1977-1979 Lincoln Versailles, rear, with 31 splines\u003c\/li\u003e\n\u003cli\u003eFits 1980 Lincoln Versailles, rear inner\u003c\/li\u003e\n\u003cli\u003eFits 1974-1979 Mercury Cougar, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1975-1979 Mercury Monarch, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1975 Mercury Montego, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1974 Mercury Montego, rear, with 8in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1973 Mercury Montego, rear, with 7.75in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1971-1972 Mercury Colony Park, rear, with 9.375in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1972 Mercury Marquis, rear, with 9.375in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1971 Mercury Marquis, rear, with 9in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 1967-1970 Mercury Marquis, rear\u003c\/li\u003e\n\u003cli\u003eFits 1969-1970 Mercury Marauder, rear\u003c\/li\u003e\n\u003cli\u003eFits 1966 Mercury Marauder, rear\u003c\/li\u003e\n\u003cli\u003eFits 1966-1970 Mercury Colony Park, rear\u003c\/li\u003e\n\u003cli\u003eFits 1957-1960 Mercury Colony Park, rear\u003c\/li\u003e\n\u003cli\u003eFits 1966-1967 Mercury Villager, rear\u003c\/li\u003e\n\u003cli\u003eFits 1965 Mercury Villager, rear, with Heavy Duty Axle\u003c\/li\u003e\n\u003cli\u003eFits 1961-1965 Mercury Colony Park, rear, with Heavy Duty Axle\u003c\/li\u003e\n\u003cli\u003eFits 1963-1965 Mercury Marauder, rear, with Heavy Duty Axle\u003c\/li\u003e\n\u003cli\u003eFits 1963-1964 Buick LeSabre, rear\u003c\/li\u003e\n\u003cli\u003eFits 1968-1970 Buick Riviera, rear\u003c\/li\u003e\n\u003cli\u003eFits 1973 Ford Thunderbird, rear\u003c\/li\u003e\n\u003cli\u003eFits 1957-1971 Ford Thunderbird, rear\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"InMotion","offers":[{"title":"Default Title","offer_id":52406885384373,"sku":"HKKS-WS51098","price":9.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WJ_WS51098_Fro.jpg?v=1777774199","url":"https:\/\/www.partcatalog.com\/products\/inmotion-ws51098-wheel-seal-rear-rear-inner-or-rear-outer","provider":"PartCatalog","version":"1.0","type":"link"}