{"product_id":"durago-bd8939-brake-drum","title":"DuraGo BD8939 Brake Drum - Rear","description":"\u003ch2\u003eDurable DuraGo BD8939 Brake Drum for Select GM Vehicles\u003c\/h2\u003e\u003cp\u003eThe DuraGo BD8939 brake drum is engineered to provide reliable braking performance for a range of Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Designed with composite construction and cast iron material, this brake drum offers consistent durability and heat dissipation for everyday driving conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from cast iron with a steel top for strength and longevity\u003c\/li\u003e\n\u003cli\u003eComposite construction with outer cooling fins to enhance heat dissipation\u003c\/li\u003e\n\u003cli\u003eNominal drum diameter of 223.5 mm (8.8 inches) with a maximum discard diameter of 226.3 mm (8.91 inches)\u003c\/li\u003e\n\u003cli\u003eFive bolt holes with a bolt circle diameter of 114.3 mm (4.5 inches)\u003c\/li\u003e\n\u003cli\u003eBrake surface width of 54.4 mm (2.14 inches) for effective braking contact\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 70.6 mm (2.78 inches) for precise fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis brake drum is designed specifically for compatibility with various GM vehicles including Buick LeSabre, Cadillac DeVille, Chevrolet Malibu, Oldsmobile Cutlass, and Pontiac Grand Am among others. The BD8939 part number ensures exact replacement fitment, maintaining factory specifications for brake diameter, bolt pattern, and overall height of 70 mm (2.76 inches). The inclusion of outer cooling fins helps reduce heat buildup during braking, which can improve brake life and performance under normal driving conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe DuraGo BD8939 brake drum is compatible with multiple GM makes and models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick: Century, LeSabre, Park Avenue, Regal\u003c\/li\u003e\n\u003cli\u003eCadillac: DeVille, Fleetwood\u003c\/li\u003e\n\u003cli\u003eChevrolet: Malibu, Monte Carlo, Lumina, Montana\u003c\/li\u003e\n\u003cli\u003eOldsmobile: Cutlass, Cutlass Ciera, Cutlass Cruiser, Delta 88\u003c\/li\u003e\n\u003cli\u003ePontiac: Grand Am, Bonneville, Trans Sport, Silhouette\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by the BD8939 Brake Drum\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake noise or vibration caused by worn or warped drums\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency due to surface wear or scoring\u003c\/li\u003e\n\u003cli\u003eBrake fade from excessive heat buildup during prolonged use\u003c\/li\u003e\n\u003cli\u003eUneven brake pad wear resulting from damaged drums\u003c\/li\u003e\n\u003cli\u003eCorrosion or structural damage compromising brake safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the brake drum matches the vehicle’s bolt pattern and diameter before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake shoes and hardware for wear and replace as necessary during drum installation\u003c\/li\u003e\n\u003cli\u003eClean the hub surface and apply anti-seize compound to prevent future corrosion\u003c\/li\u003e\n\u003cli\u003eCheck for proper drum runout to avoid brake pulsation\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for lug nuts and bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe DuraGo BD8939 brake drum is manufactured to meet or exceed OEM standards for material quality and dimensional accuracy. While this product does not include a rust-resistant coating, its composite construction and cooling fins contribute to durability and heat management. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.\u003c\/p\u003e","brand":"DuraGo","offers":[{"title":"Default Title","offer_id":43576895799477,"sku":"GVMP-BD8939","price":60.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/PR_BD8939_Fro_8abb48c9-9492-4426-a47c-7af6a616e732.jpg?v=1774971973","url":"https:\/\/www.partcatalog.com\/products\/durago-bd8939-brake-drum","provider":"PartCatalog","version":"1.0","type":"link"}