{"product_id":"yukon-gear-grizzly-locker-for-toyota-8in-4-cylinder","title":"Yukon Gear Grizzly Locker For Toyota 8in \/ 4 Cylinder","description":"\u003ch4\u003eYukon Gear Grizzly Locker for Toyota 8in 4-Cylinder Rear Differential with 30 Spline Axles\u003c\/h4\u003e\n\u003cp\u003eThe YGLT8-30 is the Yukon Gear Grizzly Locker designed for the Toyota 8-inch rear differential found in 4-cylinder-powered Toyota Pickup and 4Runner models from 1979 through 1995. Built as a direct carrier replacement, YGLT8-30 transforms the open factory differential into a full mechanical positive-locking unit that delivers 100% torque to both rear wheels under power, then automatically disengages during turns to allow normal cornering. Whether the application is rock crawling, sand running, trail work, or drag racing, the Grizzly Locker offers a patented tooth design with 8620 alloy internals for maximum strength. Compatible with all gear ratios in the Toyota 8-inch 4-cylinder housing, YGLT8-30 is assembled in the USA and backed by Yukon's industry-leading warranty program.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures and Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Toyota 8-inch rear differential in 4-cylinder applications only\u003c\/li\u003e\n  \u003cli\u003eFits all gear ratios in the Toyota 8-inch 4-cylinder housing\u003c\/li\u003e\n  \u003cli\u003e30 spline axle shaft requirement\u003c\/li\u003e\n  \u003cli\u003eDirect carrier replacement, no external cables or air lines required\u003c\/li\u003e\n  \u003cli\u003ePatented internal design reduces common locker failure modes\u003c\/li\u003e\n  \u003cli\u003eInner clutch teeth with larger base radius deliver up to 350% greater strength versus back-cut designs\u003c\/li\u003e\n  \u003cli\u003eLarger teeth resist breakage from shock-loading and axle failure events\u003c\/li\u003e\n  \u003cli\u003e8620 chromoly alloy steel internals for maximum impact resistance\u003c\/li\u003e\n  \u003cli\u003eAutomatic engagement under power, automatic disengagement in turns\u003c\/li\u003e\n  \u003cli\u003eAssembled in the USA\u003c\/li\u003e\n  \u003cli\u003e1-year limited manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1979\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1980\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1981\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1982\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1983\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1984\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1984\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1985\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1985\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1986\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1986\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1987\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1988\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1988\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1989\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1989\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1990\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1990\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1991\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1991\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1992\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1992\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1993\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1993\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003e4Runner\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eYGLT8-30\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e883584280194\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDifferential\u003c\/td\u003e\n\u003ctd\u003eToyota 8-inch Rear (4-cylinder)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRing Gear Size\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpline Count\u003c\/td\u003e\n\u003ctd\u003e30 spline axles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003eAll ratios\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSelectable Automatic Locker (Mechanical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e8620 chromoly steel internals\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA (assembled)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1-year limited manufacturer warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eOne (1) Yukon Grizzly Locker complete carrier assembly (YGLT8-30)\u003c\/li\u003e\n  \u003cli\u003eAll internal locker components pre-assembled\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Toyota vehicles does YGLT8-30 fit?\u003c\/strong\u003e\u003cbr\u003eThe YGLT8-30 fits 1979 through 1995 Toyota Pickup and 1984 through 1995 Toyota 4Runner models equipped with the Toyota 8-inch rear differential and 4-cylinder engine. This is a separate housing from the Toyota V6 8-inch differential, which requires a different part number (YGLTV6-30).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes YGLT8-30 work with any gear ratio?\u003c\/strong\u003e\u003cbr\u003eYes, the YGLT8-30 is compatible with all gear ratios in the Toyota 8-inch 4-cylinder rear differential, including stock ratios and aftermarket regears.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a Grizzly Locker and how is it different from an LSD?\u003c\/strong\u003e\u003cbr\u003eThe YGLT8-30 is a mechanical automatic locker that locks both rear axles together under power, delivering 100% of available torque to both rear wheels simultaneously. A limited-slip differential (LSD) uses clutch packs or Torsen gearing to bias torque, allowing some wheel speed differential. The locker provides maximum traction for off-road and drag racing; the LSD is more comfortable for street use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use YGLT8-30 in my daily-driven Toyota Pickup on the street?\u003c\/strong\u003e\u003cbr\u003eYes. The Grizzly Locker automatically disengages during turns, making it more compatible with street driving than a spool or locked differential. Some tire scrub during low-speed turns and mild steering pull on dry pavement is expected, which is normal for all automatic lockers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill YGLT8-30 fit a Toyota V6-powered Pickup or 4Runner?\u003c\/strong\u003e\u003cbr\u003eNo. The YGLT8-30 is designed specifically for the 4-cylinder Toyota 8-inch rear differential. For V6-powered Toyota Pickup and 4Runner applications, use the Yukon YGLTV6-30 instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes installing YGLT8-30 affect my vehicle warranty under the Magnuson-Moss Warranty Act?\u003c\/strong\u003e\u003cbr\u003eUnder the Magnuson-Moss Warranty Act, your vehicle manufacturer cannot void your warranty solely because of an aftermarket carrier installation. They would need to demonstrate that the YGLT8-30 specifically caused any warranty claim filed. Consult your dealer or a legal advisor for your specific situation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to change my gear oil after installing the Grizzly Locker?\u003c\/strong\u003e\u003cbr\u003eDrain and refill with fresh GL-5 gear oil during installation. No friction modifier is required since the Grizzly Locker is a mechanical locker without clutch packs. Change the oil again after the first 500 miles to remove any break-in debris.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the warranty on YGLT8-30?\u003c\/strong\u003e\u003cbr\u003eThe YGLT8-30 carries a 1-year limited warranty against manufacturing defects. Yukon also offers an extended lifetime warranty option for additional coverage. Review the full warranty terms at yukongear.com.\u003c\/p\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003eRaise and safely support the vehicle on jack stands. Drain the Toyota 8-inch rear differential gear oil.\u003c\/li\u003e\n  \u003cli\u003eRemove the rear axle shafts from both sides of the housing.\u003c\/li\u003e\n  \u003cli\u003eRemove the differential cover and gasket. Clean the housing mating surface.\u003c\/li\u003e\n  \u003cli\u003eMark the bearing caps for exact reinstallation in original position and orientation.\u003c\/li\u003e\n  \u003cli\u003eRemove the bearing cap bolts and carefully extract the factory open carrier assembly with bearings and shims. Keep left and right shim stacks labeled.\u003c\/li\u003e\n  \u003cli\u003eRemove the ring gear from the factory carrier. Inspect gear teeth and ring gear bolts for wear.\u003c\/li\u003e\n  \u003cli\u003eInstall the ring gear onto the YGLT8-30 Grizzly Locker carrier using new or inspected ring gear bolts with thread-lock compound. Torque to Toyota 8-inch specification (typically 50 to 65 ft-lb).\u003c\/li\u003e\n  \u003cli\u003ePress original carrier bearings onto the Grizzly Locker bearing hubs, or install new carrier bearings.\u003c\/li\u003e\n  \u003cli\u003eSet the assembly into the housing with the original shim stacks. Reinstall bearing caps in marked positions.\u003c\/li\u003e\n  \u003cli\u003eCheck and adjust ring gear backlash (typically 0.005 to 0.009 in for Toyota 8-inch) and carrier bearing preload.\u003c\/li\u003e\n  \u003cli\u003eVerify gear contact pattern using marking compound.\u003c\/li\u003e\n  \u003cli\u003eTorque bearing cap bolts to Toyota specification. Install a new cover gasket and cover.\u003c\/li\u003e\n  \u003cli\u003eReinstall the axle shafts with new seals if required. Fill with GL-5 gear oil to the proper level.\u003c\/li\u003e\n  \u003cli\u003eRoad test and perform a 500-mile break-in before extreme off-road use. Change the gear oil after the break-in period.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eProposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":40481874149455,"sku":"YUKYGLT8-30","price":1017.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/yukon-gear-grizzly-locker-for-toyota-8in-4-cylinder-differentials-yukon-gear-axle-2.jpg?v=1701887008","url":"https:\/\/www.blackopsautoworks.com\/products\/yukon-gear-grizzly-locker-for-toyota-8in-4-cylinder","provider":"Black Ops Auto Works","version":"1.0","type":"link"}