{"product_id":"yukon-gear-grizzly-locker-for-gm-8-5in-8-6in-30-spline-2-73","title":"Yukon Gear Grizzly Locker For GM 8.5in \u0026 8.6in \/ 30 Spline \/ 2.73+","description":"Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that’s engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It’s a serious piece of mechanical engineering for serious driving conditions. \nThe Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street; off-road; and drag racing. Grizzly Lockers provide 100% power to both tires; while still allowing for disengagement while negotiating turns.\n1.781in. Large bearing journal design. Requires HD bearings for GM 8.5in. differentials. LM102949\/LM102911\n\u003cul\u003e\n  \u003cli\u003ePatented internal design reduces common locker failures\u003c\/li\u003e\n  \u003cli\u003eFits GM 8.5 in. And 8.6 in. w\/30 Spline Axles\u003c\/li\u003e\n  \u003cli\u003eFits GM 8.5\" and 8.6\" with 30 spline axles\u003c\/li\u003e\n  \u003cli\u003e8620 internals for added strength\u003c\/li\u003e\n  \u003cli\u003e2.73 and up ratio only\u003c\/li\u003e\n  \u003cli\u003eAssembled in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Yukon Gear \u0026amp; Axle Grizzly Locker is a high-performance, mechanically locking differential designed for serious off-road enthusiasts, trail runners, rock crawlers, and drag racers. Engineered with advanced gear tooth design and a patented internal mechanism, this locker ensures maximum traction by providing 100% power to both wheels, even during challenging turns. The robust construction and innovative design make it an ideal upgrade for GM 8.5-inch and 8.6-inch differentials with 30 spline axles. Its durable 8620 internals and larger internal clutch teeth with a greater radius at the base deliver up to 350% increased strength compared to back-cut designs, significantly resisting breakage from shock-loading or catastrophic axle failures. Whether navigating rugged terrain or pushing the limits on the strip, the Yukon Grizzly Locker offers reliable, high-impact performance. The large bearing journal design, measuring 1.78 inches, necessitates heavy-duty bearings (LM102949\/LM102911) for proper installation. Assembled in the USA, this locker is built for durability and long-lasting performance, fitting gear ratios of 2.73 and higher. Its internal design reduces common locker failures, providing peace of mind during intense off-road adventures or racing applications. This unit is not compatible with CARB-registered vehicles but is suitable for street, off-road, and racing environments where maximum traction and strength are required.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003ePatented internal design reduces common locker failures\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFits GM 8.5 in. and 8.6 in. differentials with 30 spline axles\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed with 8620 internals for enhanced strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires heavy-duty bearings (LM102949\/LM102911) for 1.78-inch bearing journals\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for gear ratios of 2.73 and higher\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAssembled in the USA for quality assurance\u003c\/li\u003e\u003c\/ul\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":53960388608316,"sku":"yukYGLGM8.5-3-30","price":1133.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/81570b4617fa1ae9811a5a121a4a61eb.jpg?v=1785788539","url":"https:\/\/necycleshop.com\/products\/yukon-gear-grizzly-locker-for-gm-8-5in-8-6in-30-spline-2-73","provider":"NE Cycle Shop","version":"1.0","type":"link"}