{"product_id":"bchd-pt3604-differential-pinion-seal-front-outer-or-rear-outer","title":"BCHD PT3604 Differential Pinion Seal - Front Outer or Rear Outer","description":"\u003ch2\u003eDifferential Pinion Seal for Ford Applications\u003c\/h2\u003e\u003cp\u003ePT3604 is a differential pinion seal for Ford, Lincoln, Mazda, and Mercury driveline applications. It is listed for front outer and rear outer positions, with fitment tied to specific axle and ring gear configurations. PT3604 is a direct replacement part number to verify against the original seal before service.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement differential pinion seal for driveline sealing service.\u003c\/li\u003e\n\u003cli\u003eFits a wide range of Ford F-150, Ford Mustang, and Ford Explorer applications.\u003c\/li\u003e\n\u003cli\u003eApplication-specific fitment by axle and ring gear size, including 7.5-inch, 8.8-inch, and other listed configurations.\u003c\/li\u003e\n\u003cli\u003eSupports front outer and rear outer pinion seal locations where specified in the fitment data.\u003c\/li\u003e\n\u003cli\u003ePart number PT3604 for catalog and service reference.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003ePT3604 is used to seal the differential pinion area and help maintain proper lubricant retention in the axle assembly. The fitment data covers many Ford truck, SUV, and car platforms, including Ford F-150, Ford Mustang, and Ford Explorer, with notes that distinguish axle size and design variations. Because the application depends on ring gear size and axle configuration, matching the original seal dimensions and axle details is important before installation. This part number PT3604 is also referenced across multiple Ford, Lincoln, Mazda, and Mercury rear axle applications.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a leaking pinion seal at the differential.\u003c\/li\u003e\n\u003cli\u003eRestoring axle lubricant containment.\u003c\/li\u003e\n\u003cli\u003eAddressing seepage around the pinion area.\u003c\/li\u003e\n\u003cli\u003eSupporting service on worn or aged rear axle sealing surfaces.\u003c\/li\u003e\n\u003cli\u003eMatching axle-specific service requirements on Ford F-150 and Ford Mustang driveline setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the axle type, ring gear size, and position before ordering or installing PT3604. The fitment list includes multiple design variations, so the original seal should be matched to the vehicle’s axle configuration rather than the model name alone. Clean the sealing surface thoroughly and inspect the pinion area for wear before assembly. Verify compatibility against the listed notes for Ford Expedition, Ford Ranger, and Lincoln Navigator applications where applicable.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eUse the fitment notes and part number PT3604 to confirm the correct application before service. This seal is cataloged for a broad range of axle configurations across Ford, Lincoln, Mazda, and Mercury platforms.\u003c\/p\u003e","brand":"BCHD","offers":[{"title":"Default Title","offer_id":53683103269045,"sku":"BCHD-PT3604","price":13.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/8P_PT3604_Ang.jpg?v=1793773199","url":"https:\/\/www.partcatalog.com\/products\/bchd-pt3604-differential-pinion-seal-front-outer-or-rear-outer","provider":"PartCatalog","version":"1.0","type":"link"}