{"product_id":"yukon-grizzly-locker-dana-60-4-56-40-spline","title":"Yukon Dana 60 Grizzly Locker - 40-Spline, 4.56 \u0026 Up","description":"\u003cp data-end=\"621\" data-start=\"96\"\u003eBuilt for Dana 60 axle builds running 40-spline shafts, this Yukon Grizzly Locker upgrade sends 100% of available torque to both axle shafts under load. It’s ideal for heavy-duty builds that have stepped up to 40-spline axles and need a differential that can match that level of strength and abuse.\u003c\/p\u003e\n\u003cp data-end=\"1073\" data-start=\"623\"\u003eThe patented gear design features larger engagement teeth and improved tooth geometry, significantly increasing strength and reducing common failure points. Built with 8620 steel internals and assembled in the USA, this locker is designed for long-term durability while still allowing disengagement during turns for improved drivability.\u003c\/p\u003e\n\u003cp data-end=\"1073\" data-start=\"623\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1136\" data-start=\"1087\" data-section-id=\"1v5gevk\"\u003e(1) 40-spline mechanical locking differential\u003c\/li\u003e\n\u003cli data-end=\"1174\" data-start=\"1137\" data-section-id=\"h8cc4w\"\u003eFully assembled internal gear set\u003c\/li\u003e\n\u003cli data-end=\"1223\" data-start=\"1175\" data-section-id=\"1f38pv0\"\u003eInstallation-ready unit for Dana 60 carriers\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 width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\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=\"1278\" data-start=\"1242\" data-section-id=\"mosjbn\"\u003eFits Dana Spicer 60 differential\u003c\/li\u003e\n\u003cli data-end=\"1311\" data-start=\"1279\" data-section-id=\"1t8r7r3\"\u003e40-spline axle compatibility\u003c\/li\u003e\n\u003cli data-end=\"1364\" data-start=\"1312\" data-section-id=\"8dy0ut\"\u003eCarrier: 4.56 and numerically higher gear ratios\u003c\/li\u003e\n\u003cli data-end=\"1410\" data-start=\"1365\" data-section-id=\"1ukngz8\"\u003eAutomatic mechanical locking differential\u003c\/li\u003e\n\u003cli data-end=\"1446\" data-start=\"1411\" data-section-id=\"5zx975\"\u003e100% torque transfer under load\u003c\/li\u003e\n\u003cli data-end=\"1481\" data-start=\"1447\" data-section-id=\"h4xyyc\"\u003e8620 steel internal components\u003c\/li\u003e\n\u003cli data-end=\"1544\" data-start=\"1482\" data-section-id=\"1oi18hw\"\u003ePatented gear design for increased strength and durability\u003c\/li\u003e\n\u003cli data-end=\"1604\" data-start=\"1545\" data-section-id=\"pkd3uc\"\u003eLarger internal teeth to resist shock load and breakage\u003c\/li\u003e\n\u003cli data-end=\"1629\" data-start=\"1605\" data-section-id=\"4dfvvb\"\u003eAssembled in the USA\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 width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10 Pickup\u003c\/td\u003e\n\u003ctd\u003e1967–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC10 Suburban\u003c\/td\u003e\n\u003ctd\u003e1967–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC20 Pickup\u003c\/td\u003e\n\u003ctd\u003e1964–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eG10 Van\u003c\/td\u003e\n\u003ctd\u003e1968–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003e1979–1987\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK10 Pickup\u003c\/td\u003e\n\u003ctd\u003e1967–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK10 Suburban\u003c\/td\u003e\n\u003ctd\u003e1967–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK20 Suburban\u003c\/td\u003e\n\u003ctd\u003e1967–1972\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK30 Pickup\u003c\/td\u003e\n\u003ctd\u003e1971–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK30\u003c\/td\u003e\n\u003ctd\u003e1977–1986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSuburban\u003c\/td\u003e\n\u003ctd\u003e1964–1966\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eV30\u003c\/td\u003e\n\u003ctd\u003e1987–1988\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB100\/B100 Van\u003c\/td\u003e\n\u003ctd\u003e1971–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB200\/B200 Van\u003c\/td\u003e\n\u003ctd\u003e1971–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB250\u003c\/td\u003e\n\u003ctd\u003e1981–1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB2500\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB300\/B300 Van\u003c\/td\u003e\n\u003ctd\u003e1971–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB350\u003c\/td\u003e\n\u003ctd\u003e1981–1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB3500\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003e1969–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eD200 Pickup\/Series\u003c\/td\u003e\n\u003ctd\u003e1960–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eD250\u003c\/td\u003e\n\u003ctd\u003e1981–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eD300 Pickup\/Series\u003c\/td\u003e\n\u003ctd\u003e1960–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eD350\u003c\/td\u003e\n\u003ctd\u003e1981–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eDart\u003c\/td\u003e\n\u003ctd\u003e1969–1976\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 1500\u003c\/td\u003e\n\u003ctd\u003e2004–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 2500\u003c\/td\u003e\n\u003ctd\u003e1994–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 2500 Van\u003c\/td\u003e\n\u003ctd\u003e1999–2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 3500 Van\u003c\/td\u003e\n\u003ctd\u003e1999–2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eW200 Pickup\/Series\u003c\/td\u003e\n\u003ctd\u003e1967–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eW250\u003c\/td\u003e\n\u003ctd\u003e1981–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eW300 Pickup\/Series\u003c\/td\u003e\n\u003ctd\u003e1960–1980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eW350\u003c\/td\u003e\n\u003ctd\u003e1981–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-150\u003c\/td\u003e\n\u003ctd\u003e2008–2013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-200 Econoline\u003c\/td\u003e\n\u003ctd\u003e1969–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-250\/E-250 Econoline\u003c\/td\u003e\n\u003ctd\u003e1980–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-300 Econoline\u003c\/td\u003e\n\u003ctd\u003e1969–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Not compatible with C-clip axle applications\u003c\/strong\u003e\u003c\/p\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 width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp data-start=\"2013\" data-end=\"2295\"\u003eUpgrading a Dana 60 to 40 spline axles significantly increases axle shaft strength, but requires a differential that can handle the added load. This locker is designed specifically for those builds, making it ideal for rigs running large tires and high torque setups.\u003c\/p\u003e\n\u003cp data-start=\"2297\" data-end=\"2541\"\u003eMechanical lockers like the Grizzly provide consistent traction by locking both wheels under load, which is critical in off-road environments. Proper setup, including backlash and carrier preload, is key to long-term durability and performance.\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":53285017092461,"sku":"YUKYGLD60-4-40","price":1067.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/1145\/3037\/files\/YGLD60-4-40-Dana60-Grizzly-Locker-40Spline-456.jpg?v=1777900293","url":"https:\/\/craneaxle.com\/products\/yukon-grizzly-locker-dana-60-4-56-40-spline","provider":"Crane Axle","version":"1.0","type":"link"}