{"product_id":"dorman-520-978-suspension-control-arm-and-ball-joint-assembly-front-lower-forward","title":"Dorman 520-978 Suspension Control Arm and Ball Joint Assembly - Front Lower Forward","description":"\u003ch2\u003eDorman 520-978 Suspension Control Arm Assembly\u003c\/h2\u003e\u003cp\u003eDorman 520-978 is a direct replacement suspension control arm and ball joint assembly for specific Audi applications. It is built to help restore smooth ride quality, directional stability, and predictable suspension response on the front lower forward position.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for original equipment fitment on select vehicles\u003c\/li\u003e\n\u003cli\u003ePre-greased for immediate service\u003c\/li\u003e\n\u003cli\u003eSteel control arm construction with black finish\u003c\/li\u003e\n\u003cli\u003eBall joint included and installed\u003c\/li\u003e\n\u003cli\u003eRubber bushings included\u003c\/li\u003e\n\u003cli\u003eMounting hardware included\u003c\/li\u003e\n\u003cli\u003eThreaded ball joint stud with 14 mm thread diameter\u003c\/li\u003e\n\u003cli\u003ePressed attachment type for OE-style installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Dorman 520-978 assembly is engineered for the front lower forward suspension position on 2005-2011 Audi A6, 2005-2011 Audi A6 Quattro, and 2007-2011 Audi S6. It combines the control arm, bushings, and ball joint in one service part to simplify replacement of worn suspension components while maintaining the original vehicle geometry. This part cross-references Delphi TC1878 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Repair Symptoms\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClunking or knocking from the front suspension\u003c\/li\u003e\n\u003cli\u003eLoose or wandering steering feel\u003c\/li\u003e\n\u003cli\u003eUneven tire wear caused by worn suspension joints\u003c\/li\u003e\n\u003cli\u003eExcessive play in the front lower forward control arm\u003c\/li\u003e\n\u003cli\u003eReduced ride stability over bumps and road irregularities\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify vehicle application by year, make, model, and front lower forward position before installation. Inspect adjacent suspension components, fasteners, and alignment settings during service. Because the ball joint is installed and the assembly is pre-greased, this part is ready for replacement once the original component is removed and the mounting points are prepared.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman uses an industry-focused evaluation process to help ensure consistent ride quality, directional stability, and predictable suspension dynamics. The steel casting\/forged construction, rubber bushings, and OE-style replacement design support dependable service on Audi A6, Audi A6 Quattro, and Audi S6 front suspension repairs.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52752770269365,"sku":"BKKY-520-978","price":150.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_520978_Fro.jpg?v=1782886802","url":"https:\/\/www.partcatalog.com\/products\/dorman-520-978-suspension-control-arm-and-ball-joint-assembly-front-lower-forward","provider":"PartCatalog","version":"1.0","type":"link"}