{"product_id":"dorman-540-074-suspension-ball-joint-front-lower","title":"Dorman 540-074 Suspension Ball Joint - Front Lower","description":"\u003ch2\u003eDorman 540-074 Suspension Ball Joint\u003c\/h2\u003e\u003cp\u003eDorman 540-074 is a threaded suspension ball joint built as a standard replacement for the original equipment part on specific vehicles. It is engineered and tested for dependable front suspension service on 1955-1957 Chevrolet Bel Air front lower applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 1955-1957 Chevrolet Bel Air, front lower\u003c\/li\u003e\n\u003cli\u003eThreaded, bolt-in style suspension ball joint\u003c\/li\u003e\n\u003cli\u003eSteel construction with grey finish\u003c\/li\u003e\n\u003cli\u003eDust boot included with polychloroprene boot material\u003c\/li\u003e\n\u003cli\u003eGreaseable design with grease fitting not included\u003c\/li\u003e\n\u003cli\u003eCastle nut included; cotter pin hole provided\u003c\/li\u003e\n\u003cli\u003eMounting hardware included; mounting hole quantity: 4\u003c\/li\u003e\n\u003cli\u003eTapered stud with 12 mm wrench size and 35.5 mm stud thread length\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Dorman suspension ball joint is built for direct replacement service where the original front lower joint has worn, loosened, or developed excess play. The steel body, threaded design, and greaseable construction support routine suspension maintenance, while the included dust boot helps protect the joint from road contamination. For buyers searching for a 1955-1957 Chevrolet Bel Air front lower ball joint or a Dorman 540-074 OE replacement, this part matches the listed application and mounting style.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront-end clunking or popping from a worn ball joint\u003c\/li\u003e\n\u003cli\u003eExcessive steering looseness or wandering\u003c\/li\u003e\n\u003cli\u003eUneven tire wear caused by suspension play\u003c\/li\u003e\n\u003cli\u003eVisible boot damage or contamination at the joint\u003c\/li\u003e\n\u003cli\u003eRestoration or repair of the front lower suspension on a Chevrolet Bel Air\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle application before installation and confirm the front lower position matches the removed part. The threaded, bolt-in design and tapered stud should be checked against the original mounting points and steering knuckle interface. Because this joint is greaseable, service it according to the vehicle’s maintenance schedule after installation. Part number 540-074 is also referenced in OE-style replacement searches for this application.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman states that this suspension ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. Cross-reference part numbers for the same application include MOOG K670 and Delphi TC6042.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52763280638133,"sku":"BKKY-540-074","price":57.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_540074_Bac.jpg?v=1783147324","url":"https:\/\/www.partcatalog.com\/products\/dorman-540-074-suspension-ball-joint-front-lower","provider":"PartCatalog","version":"1.0","type":"link"}