{"product_id":"yukon-grizzly-locker-dana-30-30-spline-3-73","title":"Yukon Dana 30 Grizzly Locker - 30-Spline, 3.73 \u0026 Up","description":"\u003cp data-start=\"82\" data-end=\"637\"\u003eBuilt for Dana 30 axle builds that need real traction, this Yukon 30-spline Grizzly Locker is a serious upgrade for Jeeps, lightweight trucks, and trail rigs pushing beyond factory limits. This mechanical locker delivers true lockup—sending 100% of available torque to both axle shafts under load. It’s ideal for builds that have outgrown open differentials or limited slips and need consistent, reliable traction in off-road conditions.\u003c\/p\u003e\n\u003cp data-start=\"639\" data-end=\"1073\"\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 engineered for durability while still allowing disengagement during turns for improved steering control.\u003c\/p\u003e\n\u003cp data-start=\"1075\" data-end=\"1086\"\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1087\" data-end=\"1225\"\u003e\n\u003cli data-section-id=\"kusyba\" data-start=\"1087\" data-end=\"1138\"\u003e(1) Mechanical locking differential (30-spline)\u003c\/li\u003e\n\u003cli data-section-id=\"h8cc4w\" data-start=\"1139\" data-end=\"1176\"\u003eFully assembled internal gear set\u003c\/li\u003e\n\u003cli data-section-id=\"th56qx\" data-start=\"1177\" data-end=\"1225\"\u003eInstallation-ready unit for Dana 30 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 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=\"1273\" data-start=\"1244\" data-section-id=\"11a0c14\"\u003eFits Dana 30 differential\u003c\/li\u003e\n\u003cli data-end=\"1306\" data-start=\"1274\" data-section-id=\"nonbbs\"\u003e30-spline axle compatibility\u003c\/li\u003e\n\u003cli data-end=\"1359\" data-start=\"1307\" data-section-id=\"189f1v9\"\u003eCarrier: 3.73 and numerically higher gear ratios\u003c\/li\u003e\n\u003cli data-end=\"1405\" data-start=\"1360\" data-section-id=\"1ukngz8\"\u003eAutomatic mechanical locking differential\u003c\/li\u003e\n\u003cli data-end=\"1441\" data-start=\"1406\" data-section-id=\"5zx975\"\u003e100% torque transfer under load\u003c\/li\u003e\n\u003cli data-end=\"1476\" data-start=\"1442\" data-section-id=\"h4xyyc\"\u003e8620 steel internal components\u003c\/li\u003e\n\u003cli data-end=\"1539\" data-start=\"1477\" data-section-id=\"1oi18hw\"\u003ePatented gear design for increased strength and durability\u003c\/li\u003e\n\u003cli data-end=\"1564\" data-start=\"1540\" data-section-id=\"4dfvvb\"\u003eAssembled in the USA\u003c\/li\u003e\n\u003cli data-end=\"1610\" data-start=\"1565\" data-section-id=\"1l7pbfs\"\u003eUses carrier bearings \u003cstrong\u003eLM102949\u003c\/strong\u003e \u0026amp; \u003cstrong\u003eLM102911\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\" data-end=\"1610\" data-start=\"1565\" data-section-id=\"1l7pbfs\"\u003e\u003cstrong\u003eRequires SK30214 carrier shims\u003c\/strong\u003e\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\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\u003eAmerican Motors\u003c\/td\u003e\n\u003ctd\u003eEagle\u003c\/td\u003e\n\u003ctd\u003e1980–1988\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eAerostar\u003c\/td\u003e\n\u003ctd\u003e1986–1989\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco\u003c\/td\u003e\n\u003ctd\u003e1966–1971\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternational\u003c\/td\u003e\n\u003ctd\u003eScout 800\u003c\/td\u003e\n\u003ctd\u003e1967–1971\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternational\u003c\/td\u003e\n\u003ctd\u003eScout II\u003c\/td\u003e\n\u003ctd\u003e1971–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eCherokee XJ\u003c\/td\u003e\n\u003ctd\u003e1984–2001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eCJ5\u003c\/td\u003e\n\u003ctd\u003e1971–1983\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eCJ6\u003c\/td\u003e\n\u003ctd\u003e1966–1975\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eCJ7\u003c\/td\u003e\n\u003ctd\u003e1976–1986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eComanche MJ\u003c\/td\u003e\n\u003ctd\u003e1986–1992\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eCommando\u003c\/td\u003e\n\u003ctd\u003e1967–1973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eGrand Cherokee ZJ\u003c\/td\u003e\n\u003ctd\u003e1993–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eGrand Wagoneer\u003c\/td\u003e\n\u003ctd\u003e1984–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eScrambler CJ8\u003c\/td\u003e\n\u003ctd\u003e1981–1986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWagoneer\u003c\/td\u003e\n\u003ctd\u003e1971–1973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler YJ\u003c\/td\u003e\n\u003ctd\u003e1987–1995\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler TJ\u003c\/td\u003e\n\u003ctd\u003e1997–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler JK Non-Rubicon\u003c\/td\u003e\n\u003ctd\u003e2007–2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e142\u003c\/td\u003e\n\u003ctd\u003e1970–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e144\u003c\/td\u003e\n\u003ctd\u003e1970–1974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e164\u003c\/td\u003e\n\u003ctd\u003e1970–1975\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003ctd\u003e1990–1993\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e242\u003c\/td\u003e\n\u003ctd\u003e1975–1984\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e245\u003c\/td\u003e\n\u003ctd\u003e1975–1989\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003e265\u003c\/td\u003e\n\u003ctd\u003e1976–1981\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eUses carrier bearings LM102949 \u0026amp; LM102911\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eRequires SK30214 carrier shims\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 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=\"2260\" data-start=\"1973\"\u003eThe Dana 30 is a common axle in Jeep builds, but traction becomes a limiting factor as tire size and terrain difficulty increase. A mechanical locker like the Grizzly ensures both wheels receive equal torque under load, dramatically improving climbing ability and control.\u003c\/p\u003e\n\u003cp data-end=\"2508\" data-start=\"2262\"\u003eBecause the Dana 30 is a lighter-duty axle, proper setup and component matching are critical. Using the correct carrier bearings, shims, and ensuring proper backlash and preload will help maximize durability and performance under off-road stress.\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":53285016404333,"sku":"YUKYGLD30-4-30","price":838.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/1145\/3037\/files\/YGLD30-4-30-Dana30-Grizzly-Locker-30Spline-3.73.jpg?v=1777900264","url":"https:\/\/craneaxle.com\/products\/yukon-grizzly-locker-dana-30-30-spline-3-73","provider":"Crane Axle","version":"1.0","type":"link"}