{"product_id":"durago-bd8839-brake-drum","title":"DuraGo BD8839 Brake Drum - Rear","description":"\u003ch2\u003eOverview of DuraGo BD8839 Brake Drum\u003c\/h2\u003e\u003cp\u003eThe DuraGo BD8839 brake drum is engineered for reliable braking performance on select Buick, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. Designed with a composite construction featuring cast iron and a steel top, this brake drum supports consistent stopping power and durability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComposite construction with cast iron and steel top for strength\u003c\/li\u003e\n\u003cli\u003eOuter cooling fins to aid heat dissipation\u003c\/li\u003e\n\u003cli\u003eNominal drum diameter of 241.3 mm (9.5 inches)\u003c\/li\u003e\n\u003cli\u003eBrake surface width of 62.7 mm (2.47 inches)\u003c\/li\u003e\n\u003cli\u003eFive bolt holes with a 120.65 mm (4.75 inch) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eOverall height of 78.5 mm (3.09 inches)\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 70.7 mm (2.78 inches)\u003c\/li\u003e\n\u003cli\u003eNo ABS tone ring included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DuraGo BD8839 brake drum is constructed from a composite material combining cast iron with a steel top, providing a balance of durability and heat resistance. Its outer cooling fins help dissipate heat generated during braking, reducing the risk of brake fade. The brake drum measures 11.87 inches (301.5 mm) in outside diameter and features a nominal drum diameter of 9.5 inches (241.3 mm), which aligns with factory specifications for compatible vehicles. The brake surface width of 2.47 inches (62.7 mm) ensures adequate contact area for brake shoes, contributing to effective braking performance. This brake drum includes five bolt holes with a bolt circle diameter of 4.75 inches (120.65 mm) and bolt hole diameters of 0.52 inches (13.3 mm), matching OEM fitment requirements. It does not include an ABS tone ring, so it is intended for vehicles without ABS sensor integration on the drum.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis brake drum is compatible with a range of GM vehicles, including Buick models like Century, LeSabre, and Regal; Chevrolet models such as Bel Air, Caprice, and Impala; GMC S10 and S15 trucks; Oldsmobile Cutlass and Delta 88; and Pontiac Firebird, Grand Prix, and GTO. The DuraGo BD8839 is suitable for applications requiring a 5-lug brake drum with the specified dimensions and bolt pattern.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Brake Drum\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or scored brake drums causing reduced braking efficiency\u003c\/li\u003e\n\u003cli\u003eBrake drum out-of-roundness leading to brake pulsation\u003c\/li\u003e\n\u003cli\u003eOverheated drums resulting in brake fade or noise\u003c\/li\u003e\n\u003cli\u003eCorroded or damaged brake surfaces affecting shoe contact\u003c\/li\u003e\n\u003cli\u003eIncorrect fitment or damaged bolt holes causing installation issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify vehicle compatibility using make, model, and year before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake shoes and hardware for wear and replace if necessary\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces to ensure proper drum seating\u003c\/li\u003e\n\u003cli\u003eCheck brake drum maximum diameter (discard at 243.6 mm \/ 9.59 inches) to confirm usability\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications to avoid warping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDuraGo brake drums are manufactured to meet or exceed OEM standards for fit, form, and function. The BD8839 part number undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.\u003c\/p\u003e","brand":"DuraGo","offers":[{"title":"Default Title","offer_id":43576878399669,"sku":"GVMP-BD8839","price":66.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/PR_BD8839_Fro_4d7f8419-2c6e-4eb5-a6c9-6faef248d751.jpg?v=1774971968","url":"https:\/\/www.partcatalog.com\/products\/durago-bd8839-brake-drum","provider":"PartCatalog","version":"1.0","type":"link"}