{"product_id":"dorman-539-991-suspension-track-bar-ball-joint-at-front-axle","title":"Dorman 539-991 Suspension Track Bar Ball Joint - At Front Axle","description":"\u003ch2\u003eDorman 539-991 Front Axle Track Bar Ball Joint\u003c\/h2\u003e\u003cp\u003eDorman 539-991 is a suspension track bar ball joint for the front axle on select Ford Super Duty trucks. It is built to match the original hardware dimensions and function, with steel construction, a dust boot, grease fitting, and included bolts\/studs and nuts for the specified application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement suspension track bar ball joint for the front axle\u003c\/li\u003e\n\u003cli\u003eFits 2005-2025 Ford F-250 Super Duty, at front axle\u003c\/li\u003e\n\u003cli\u003eFits 2005-2025 Ford F-350 Super Duty, at front axle\u003c\/li\u003e\n\u003cli\u003eFits 2005-2009 Ford F-250, at front axle\u003c\/li\u003e\n\u003cli\u003eSteel construction for performance-grade service\u003c\/li\u003e\n\u003cli\u003eDust boot included with polychloroprene material\u003c\/li\u003e\n\u003cli\u003eGrease fitting included\u003c\/li\u003e\n\u003cli\u003eIncludes bolts\/studs and nuts for the application\u003c\/li\u003e\n\u003cli\u003ePart number 539-991 for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman track bar ball joint is engineered for Ford F-250 Super Duty and Ford F-350 Super Duty front axle service, along with select 2005-2009 Ford F-250 applications. It is designed to match the dimensions and function of the original hardware, helping restore proper suspension linkage at the front axle. The steel body, protective dust boot, and service grease fitting support dependable operation in demanding truck use. Part number 539-991 is a practical OE-style replacement for front suspension repair work on these Ford platforms.\u003c\/p\u003e\u003cp\u003eThis part cross-references MOOG Chassis Products (e.g., K500262, K500421) for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront axle track bar looseness or play\u003c\/li\u003e\n\u003cli\u003eSuspension clunking from worn ball joint components\u003c\/li\u003e\n\u003cli\u003eSteering wander related to front suspension wear\u003c\/li\u003e\n\u003cli\u003eUneven front-end response caused by degraded joint movement\u003c\/li\u003e\n\u003cli\u003eBoot damage that exposes the joint to contamination\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify vehicle fitment by year, model, and front axle position before installation. Inspect the surrounding track bar and mounting points for wear or damage, and replace any worn hardware as needed for a proper repair. Because this joint includes a grease fitting, service it according to the vehicle maintenance schedule after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this suspension track bar ball joint with quality materials and OE-style dimensional accuracy for reliable performance and durability in the specified Ford applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52763276869813,"sku":"BKKY-539-991","price":71.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_539991_Bac.jpg?v=1783146887","url":"https:\/\/www.partcatalog.com\/products\/dorman-539-991-suspension-track-bar-ball-joint-at-front-axle","provider":"PartCatalog","version":"1.0","type":"link"}