{"product_id":"mile-marker-borg-warner-1339-quadratrac-4x2-conversion-kit-with-457-cj-hubs-mile-marker-95-15204-bcbt","title":"Borg Warner 1339 Quadratrac 4x2 Conversion Kit with 457 CJ Hubs Mile Marker","description":"\u003cp\u003eMile Marker Borg Warner 1339 Quadratrac 4x2 Conversion Kit with 457 CJ Hubs delivers a complete solution for converting factory full-time Quadratrac systems into efficient part-time four wheel drive operation while retaining the stock transfer case chain. Designed specifically for 1973 to 1979 Jeep CJ models equipped with the Borg Warner 1339 transfer case, this kit eliminates constant front axle engagement while preserving drivetrain strength and off-road capability. Factory Quadratrac systems operate in full-time mode, keeping the front drivetrain engaged at all times, increasing wear and reducing fuel efficiency.\u003c\/p\u003e\n\u003cp\u003eThis conversion kit reconfigures the transfer case to allow true part-time operation when paired with included Mile Marker 457 manual locking hubs engineered for CJ applications. By disengaging the front drivetrain during normal driving, the system reduces parasitic drag, decreases component wear, and can improve fuel economy while maintaining full four wheel drive capability when engaged. Precision-machined components and decades of drivetrain engineering experience ensure reliable performance in both restoration and trail environments.\u003c\/p\u003e\n\u003cp\u003eDesigned for professional installers and serious Jeep enthusiasts, this kit modernizes the Quadratrac system while preserving the rugged character of classic CJ vehicles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConverts Quadratrac full-time system to true part-time operation.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for 1973 to 1979 Jeep CJ Quadratrac vehicles.\u003c\/li\u003e\n\u003cli\u003eIncludes Mile Marker 457 manual locking hubs for CJ applications.\u003c\/li\u003e\n\u003cli\u003eUses original stock transfer case chain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAssociated Comments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to work with 1973 to 1979 Jeep CJ vehicles equipped with Borg Warner 1339 Quadratrac transfer cases\u003c\/li\u003e\n\u003cli\u003eConverts factory full-time systems to part-time operation while using the stock transfer case chain\u003c\/li\u003e\n\u003cli\u003eIncludes Mile Marker 457 manual locking hubs\u003c\/li\u003e\n\u003cli\u003eVerify transfer case model and front axle configuration prior to installation.\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for Borg Warner 1339 Quadratrac applications in Jeep CJ models\u003c\/li\u003e\n\u003cli\u003eRequires proper transfer case disassembly and hub installation procedures to ensure correct operation\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended to maintain drivetrain integrity and long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeries: Premium Series\u003c\/li\u003e\n\u003cli\u003eMaterial: Combination\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 Year\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quadratec","offers":[{"title":"Material: Combination \/ Series: Premium Series \/ Sold As: Kit","offer_id":49224875245795,"sku":"95-15204-BCBT","price":838.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4343\/1651\/files\/95-15204-BCBT.jpg?v=1781034442","url":"https:\/\/shop.blackflagoffroad.com\/products\/mile-marker-borg-warner-1339-quadratrac-4x2-conversion-kit-with-457-cj-hubs-mile-marker-95-15204-bcbt","provider":"Black Flag Off-Road","version":"1.0","type":"link"}