{"product_id":"gm-genuine-parts-rear-axle-housing-cover-gasket-85720902-oe-fit-leak-resistant-seal","title":"GM GENUINE PARTS Rear Axle Housing Cover Gasket 85720902 — OE Fit, Leak‑Resistant Seal","description":"\u003cp\u003e\u003cstrong\u003eGM Genuine Parts 85720902 is a factory‑validated rear axle housing cover gasket engineered to restore a proper seal on compatible Chevrolet, Buick, GMC, and Cadillac rear differentials.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis rear axle housing cover gasket is an Original Equipment (OE) part from GM Genuine Parts, designed, engineered, and tested to meet the same specifications used in GM production and service. It replaces worn or damaged gaskets to prevent fluid leaks, preserve differential performance, and maintain the integrity of the axle housing. Backed by General Motors, this gasket reflects updated materials and manufacturing practices to match service requirements for select GM models.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this gasket restore a leaking rear axle housing?\u003c\/h3\u003e\n\n\u003cp\u003eThe 85720902 gasket provides a precise sealing surface between the axle housing and its cover, stopping lubricant seepage and keeping contaminants out. When installed correctly, it recreates the original fit and compressive properties intended by GM engineers, which helps preserve internal component lubrication and reduces the risk of premature wear.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOE‑specified form and thickness for accurate contact pressure\u003c\/li\u003e\n  \u003cli\u003eMaterial chosen to resist axle lubricant and temperature cycles\u003c\/li\u003e\n  \u003cli\u003eFits the original bolt pattern and cover flange dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and situations is part 85720902 compatible with?\u003c\/h3\u003e\n\n\u003cp\u003eThis gasket is targeted for GM rear axle housings where the original equipment part number corresponds to 85720902. It is intended for use on compatible Chevrolet, Buick, GMC, and Cadillac differentials specified by GM for this part number. Use the vehicle’s VIN or consult a parts catalog to confirm fitment before purchasing.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOEM replacement for GM service and production applications\u003c\/li\u003e\n  \u003cli\u003eAppropriate for differentials that show gasket deterioration or leakage\u003c\/li\u003e\n  \u003cli\u003eIdeal when performing axle cover service, fluid changes, or repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain the rear axle housing cover gasket?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation requires cleaning mating surfaces, removing old gasket material, and seating the new gasket evenly before torquing bolts to GM specifications. Replacing the gasket during axle service or fluid change is standard practice; inspect the cover and flange for warpage or damage and replace parts as needed for a reliable seal.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThoroughly clean cover and housing flange prior to installation\u003c\/li\u003e\n  \u003cli\u003eTorque bolts in the recommended sequence and to GM torque values\u003c\/li\u003e\n  \u003cli\u003eInspect for leaks after service and re‑check torque after a short drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose GM Genuine Parts rather than a generic gasket?\u003c\/h3\u003e\n\n\u003cp\u003eGM Genuine Parts are validated by General Motors and match the specifications used during vehicle assembly, which reduces the risk of fitment issues and premature failure. These parts benefit from ongoing design updates and material choices that align with GM’s service engineering, ensuring compatibility and performance for the intended application.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned and tested to GM’s engineering standards\u003c\/li\u003e\n  \u003cli\u003eBacked by the manufacturer that designed the vehicle components\u003c\/li\u003e\n  \u003cli\u003eMay have previously been listed under ACDelco GM Original Equipment (OE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This gasket is for technicians, DIYers, and fleet managers working on Chevrolet, Buick, GMC, or Cadillac rear differentials who want an exact OE replacement. Choose part 85720902 when you need a reliable, factory‑validated seal during differential service, cover replacement, or when correcting axle housing leaks to maintain vehicle safety and performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this gasket an original GM part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. 85720902 is a GM Genuine Parts gasket validated to GM OE specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I reuse the old gasket during axle service?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Replace the gasket when removing the axle cover to ensure a proper, leak‑free seal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GM GENUINE PARTS","offers":[{"title":"Default Title","offer_id":48086723756190,"sku":"B0FH7BNPNY","price":54.17,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gm-genuine-parts-85720902-front-view.jpg?v=1785903109","url":"https:\/\/northtrailauto.ca\/products\/gm-genuine-parts-rear-axle-housing-cover-gasket-85720902-oe-fit-leak-resistant-seal","provider":"North Trail Auto","version":"1.0","type":"link"}