{"product_id":"inmotion-ws100357-wheel-seal-rear","title":"InMotion WS100357 Wheel Seal - Rear","description":"\u003ch2\u003eRear Differential Pinion Seal for Ford F-150\u003c\/h2\u003e\u003cp\u003eThe InMotion WS100357 is a rear differential pinion seal built with fluoro-elastomer material for dependable sealing at the pinion shaft. It helps keep contaminants out of the differential while maintaining a tight barrier against gear oil leaks in Ford F-150, Expedition, Navigator, and related rear axle applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFluoro-elastomer construction for sealing performance in driveline service\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.705 in; shaft diameter: 1.705 in\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.039 in; housing bore: 3.034 in\u003c\/li\u003e\n\u003cli\u003eWidth: 0.562 in for a precise fit in the housing\u003c\/li\u003e\n\u003cli\u003eRear axle application for select Ford and Lincoln vehicles\u003c\/li\u003e\n\u003cli\u003ePart number: WS100357\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2017-2019 Ford F-150, rear.\u003c\/li\u003e\n\u003cli\u003eFits 1998-2016 Ford F-150, rear, with 9.75in Ring Gear.\u003c\/li\u003e\n\u003cli\u003eFits 2006-2008 Lincoln Mark LT, rear.\u003c\/li\u003e\n\u003cli\u003eFits 2004 Ford F-150 Heritage, rear, with 9.75in Ring Gear.\u003c\/li\u003e\n\u003cli\u003eFits 1997-2002 Ford Expedition, rear.\u003c\/li\u003e\n\u003cli\u003eFits 2002 Lincoln Blackwood, rear.\u003c\/li\u003e\n\u003cli\u003eFits 1998-2002 Lincoln Navigator, rear.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow This Seal Works\u003c\/h2\u003e\u003cp\u003eThis differential pinion seal is used at the rear pinion area to retain lubricant and block road debris, water, and moisture from entering the differential assembly. On applications such as the Ford F-150 rear axle and Lincoln rear driveline setups, a worn seal can lead to gear oil seepage, contamination, and accelerated wear inside the differential. WS100357 addresses that sealing point with a precise housing and shaft interface.\u003c\/p\u003e\u003ch2\u003eCommon Problems It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear differential gear oil leaking from the pinion area\u003c\/li\u003e\n\u003cli\u003eContamination entering the differential through a worn seal\u003c\/li\u003e\n\u003cli\u003eMoisture intrusion around the pinion shaft\u003c\/li\u003e\n\u003cli\u003eNoise or wear caused by low lubricant level\u003c\/li\u003e\n\u003cli\u003eService replacement for deteriorated rear axle sealing surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify axle configuration before ordering, especially on 1998-2016 Ford F-150 and 2004 Ford F-150 Heritage models that require the 9.75in ring gear application. Inspect the pinion yoke, sealing surface, and housing bore for wear or scoring before installation. Clean the bore thoroughly and confirm the seal seats squarely to maintain proper sealing at the rear differential.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eInMotion manufactures this seal with precision-focused dimensions and fluoro-elastomer material selection to support reliable driveline sealing in rear differential service. Part number WS100357 is specified for select Ford and Lincoln rear axle applications, including Ford F-150 and Expedition platforms.\u003c\/p\u003e","brand":"InMotion","offers":[{"title":"Default Title","offer_id":52406876438709,"sku":"HKKS-WS100357","price":10.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WJ_WS100357_Fro.jpg?v=1777773157","url":"https:\/\/www.partcatalog.com\/products\/inmotion-ws100357-wheel-seal-rear","provider":"PartCatalog","version":"1.0","type":"link"}