{"product_id":"yukon-gear-steel-spool-for-dana-80-w-37-spline-axles-4-10","title":"Yukon Dana 80 Steel Spool -  37-Spline, 4.10 \u0026 Up","description":"\u003cp data-start=\"260\" data-end=\"560\"\u003eThis 37-spline steel spool for Dana 80 axles is a cost-effective solution for achieving 100% traction in off-road and racing applications. Designed to replace the factory differential carrier, it permanently locks both axle shafts together, ensuring equal torque delivery to both wheels at all times.\u003c\/p\u003e\n\u003cp data-start=\"562\" data-end=\"833\"\u003eManufactured from high-quality 8620 steel and heat treated for added strength, this spool is built to handle extreme loads and harsh conditions. Ideal for rock crawlers, mud trucks, and drag racing vehicles, it provides a simple, durable, and reliable drivetrain upgrade.\u003c\/p\u003e\n\u003cp data-start=\"835\" data-end=\"850\"\u003e\u003cstrong data-start=\"835\" data-end=\"848\"\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"851\" data-end=\"892\"\u003e\n\u003cli data-section-id=\"clf2qp\" data-start=\"851\" data-end=\"892\"\u003e(1) Yukon Dana 80 \u003cmeta charset=\"utf-8\"\u003e37-Spline Steel Spool for 4.10 \u0026amp; Up Gear Ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eSpecifications \u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"7rouo5\" data-start=\"924\" data-end=\"951\"\u003eManufacturer: Yukon\u003c\/li\u003e\n\u003cli data-section-id=\"7rouo5\" data-start=\"924\" data-end=\"951\"\u003eP\/N: \u003cmeta charset=\"utf-8\"\u003e \u003cspan data-sheets-root=\"1\"\u003eYP FSD80-4-37\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7rouo5\" data-start=\"924\" data-end=\"951\"\u003eFits: Dana 80 rear axles\u003c\/li\u003e\n\u003cli data-section-id=\"1ghnzoy\" data-start=\"952\" data-end=\"984\"\u003e37-spline axle compatibility\u003c\/li\u003e\n\u003cli data-section-id=\"tpw2mu\" data-start=\"985\" data-end=\"1025\"\u003eDesigned for 4.10 and up gear ratios\u003c\/li\u003e\n\u003cli data-section-id=\"b3vs26\" data-start=\"1026\" data-end=\"1067\"\u003eProvides 100% traction to both wheels\u003c\/li\u003e\n\u003cli data-section-id=\"1ttldhs\" data-start=\"1068\" data-end=\"1108\"\u003e8620 heat-treated steel construction\u003c\/li\u003e\n\u003cli data-section-id=\"x9bosm\" data-start=\"1109\" data-end=\"1162\"\u003eInstalls in place of factory differential carrier\u003c\/li\u003e\n\u003cli data-section-id=\"162eyzm\" data-start=\"1163\" data-end=\"1203\"\u003eDesigned for off-road and racing use\u003c\/li\u003e\n\u003cli data-section-id=\"f851g6\" data-start=\"1204\" data-end=\"1250\"\u003eNot recommended for street-driven vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFitment \u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli data-end=\"1319\" data-start=\"1275\" data-section-id=\"1mjid5v\"\u003eDana 80 Rear Axle (Chrysler Dana Spicer)\u003c\/li\u003e\n\u003cli data-end=\"1346\" data-start=\"1320\" data-section-id=\"1bdxiat\"\u003e37-spline applications\u003c\/li\u003e\n\u003cli data-end=\"1395\" data-start=\"1347\" data-section-id=\"xna1b9\"\u003e4.10 and numerically higher gear ratios only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cb id=\"docs-internal-guid-785e0e5c-7fff-2ba3-1543-a8eda468b24e\"\u003e\u003cspan\u003eTech Insight\u003c\/span\u003e\u003c\/b\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp data-end=\"1677\" data-start=\"1425\"\u003eA spool eliminates all differential action by locking both axle shafts together, making it one of the strongest and most reliable traction solutions available. With no internal moving parts like a traditional differential, failure points are minimized.\u003c\/p\u003e\n\u003cp data-end=\"1936\" data-start=\"1679\"\u003eHowever, because both wheels rotate at the same speed at all times, turning on pavement causes tire scrub and increased driveline stress. For this reason, spools are best suited for dedicated off-road or race vehicles where maximum traction is the priority.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":56440772722854,"sku":"YUKYP FSD80-4-37","price":912.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/YPFSD80-4-37-Dana80-37-spline-spool-4.10-gear-ratio.jpg?v=1777995255","url":"https:\/\/wideopendesign.com\/products\/yukon-gear-steel-spool-for-dana-80-w-37-spline-axles-4-10","provider":"Wide Open Design","version":"1.0","type":"link"}