{"product_id":"powerstop-ar8644xpr-disc-brake-rotor-set","title":"PowerStop AR8644XPR Disc Brake Rotor Set - Rear","description":"\u003ch2\u003ePower Stop Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair Overview\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair (Part Number AR8644XPR) is engineered for reliable braking performance on heavy-duty Chevrolet and GMC trucks and SUVs. Designed specifically for rear axle applications, this rotor set offers enhanced heat dissipation and corrosion resistance to maintain consistent stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet Silverado 2500, 3500, Suburban 2500, Avalanche 2500, and GMC Sierra 1500, 2500, 3500, Yukon XL 2500 models\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotors with drilled and slotted surface for improved heat management\u003c\/li\u003e\n\u003cli\u003eZinc plated finish provides rust resistance and extended rotor life\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 29.20 mm and discard thickness of 27.00 mm for precise wear limits\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 330 mm (13 inches) and 8 lug\/stud holes for secure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Power Stop rotor pair features a vented design that promotes airflow to reduce brake fade during heavy braking conditions common in trucks like the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. The drilled and slotted surface pattern helps evacuate brake dust, water, and gases, improving pad bite and overall braking efficiency. The zinc plating on the rotors offers a protective coating against rust and corrosion, which is especially beneficial for vehicles exposed to harsh weather or road salt.\u003c\/p\u003e\u003cp\u003eEach rotor has a nominal thickness of 29.20 mm and a discard thickness of 27.00 mm, ensuring you can monitor wear and replace the rotors before performance is compromised. The overall height measures 91.40 mm, and the mounting bolt hole circle diameter is 165.10 mm with 8 lug holes sized at 6.50 mm, matching factory specifications for a direct fit on compatible Chevrolet and GMC models.\u003c\/p\u003e\u003ch2\u003eAbout the Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair Line\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair product line focuses on delivering rotors that combine enhanced braking performance with durability. This line is designed to meet the demands of heavy-duty trucks and SUVs by incorporating vented rotors with drilled and slotted surfaces and corrosion-resistant zinc plating. These features work together to provide consistent braking under load while extending rotor service life.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rear brake rotors on Chevrolet Avalanche 2500 and GMC Sierra 2500 HD\u003c\/li\u003e\n\u003cli\u003eImproves braking response and heat dissipation for heavy towing or hauling with Silverado 3500 HD\u003c\/li\u003e\n\u003cli\u003eReduces brake fade caused by excessive heat buildup during extended downhill driving\u003c\/li\u003e\n\u003cli\u003ePrevents rust and corrosion on rotors exposed to moisture and road salt\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness and surface condition for safe braking performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with Chevrolet and GMC models listed before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to maintain optimal rotor contact\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces and hub to prevent rotor runout and vibration\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications to avoid rotor damage\u003c\/li\u003e\n\u003cli\u003ePerform a bed-in procedure after installation to optimize rotor and pad performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003ePower Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The zinc plating provides additional protection against corrosion, contributing to longer rotor life. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":43590209306805,"sku":"BHKQ-AR8644XPR","price":289.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_AR8644XPR_Fro.jpg?v=1774972453","url":"https:\/\/www.partcatalog.com\/products\/powerstop-ar8644xpr-disc-brake-rotor-set","provider":"PartCatalog","version":"1.0","type":"link"}