{"product_id":"yukon-8-6in-gm-4-56-rear-ring-pinion-install-kit-30-spline-positraction-axle-bearings-and-seals","title":"Yukon Gear 8.6in GM 4.56 Rear Ring \u0026 Pinion Install Kit, 30 Spline, Positraction, Bearings \u0026 Seals","description":"\u003ch4\u003eYukon Gear 8.6in GM 4.56 Rear Ring \u0026amp; Pinion Install Kit, 30 Spline, Positraction, Bearings \u0026amp; Seals\u003c\/h4\u003e\n\u003cp\u003eYukon Gear part YGK2019 is a complete re-gear kit for the GM 8.6in rear differential, combining a 4.56 ratio ring and pinion gear set with the matching Yukon Master Overhaul Kit -- including 30-spline positraction internals, bearings, and seals -- in a single part number. Yukon uses state-of-the-art design, advanced heat-treating, and leading-edge testing, backed by Yukon's Y.E.S. Plan lifetime protection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eComplete kit: ring and pinion gear set plus master overhaul kit in one part number\u003c\/li\u003e\n\u003cli\u003e4.56 gear ratio for the GM 8.6in differential\u003c\/li\u003e\n\u003cli\u003eIncludes 30-spline positraction internals\u003c\/li\u003e\n\u003cli\u003eIncludes bearings and seals for a full rebuild\u003c\/li\u003e\n\u003cli\u003eBacked by Yukon's Y.E.S. Plan lifetime protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003eFits vehicles equipped with the GM 8.6in rear differential and 30-spline axles. Confirm your exact differential and spline count before ordering.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003eYGK2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGM 8.6in rear differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear ratio\u003c\/td\u003e\n\u003ctd\u003e4.56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpline count\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePositraction included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRing and pinion gear set\u003c\/li\u003e\n\u003cli\u003e30-spline positraction unit\u003c\/li\u003e\n\u003cli\u003eMaster overhaul kit (bearings, races, seals, small parts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout Yukon Gear\u003c\/h4\u003e\n\u003cp\u003eYukon Gear \u0026amp; Axle manufactures differential, axle, and drivetrain components engineered for durable, precise-fit replacement and upgrade applications.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstrong\u003eWhat is included in this kit?\u003c\/strong\u003e\n\u003cp\u003eThis kit includes a 4.56 ratio ring and pinion gear set, a 30-spline positraction unit, and a complete Master Overhaul Kit with bearings, races, and seals.\u003c\/p\u003e\n\u003cstrong\u003eWhat differential does this kit fit?\u003c\/strong\u003e\n\u003cp\u003eThis kit fits the GM 8.6in rear differential with 30-spline axles.\u003c\/p\u003e\n\u003cstrong\u003eDo I need to buy anything else to complete my re-gear?\u003c\/strong\u003e\n\u003cp\u003eNo, this combo kit is designed to include everything needed for a complete gear and carrier rebuild in one part number.\u003c\/p\u003e\n\u003cstrong\u003eWhat is the Y.E.S. Plan?\u003c\/strong\u003e\n\u003cp\u003eYukon's Y.E.S. Plan is a lifetime, comprehensive protection plan covering your gear set for as long as you own your vehicle.\u003c\/p\u003e\n\u003cstrong\u003eIs professional installation recommended?\u003c\/strong\u003e\n\u003cp\u003eYes. Full differential rebuilds require precise backlash and pattern setup and should be performed by a qualified technician.\u003c\/p\u003e\n\u003cstrong\u003eWhat is positraction?\u003c\/strong\u003e\n\u003cp\u003ePositraction is a limited-slip differential system that improves traction by distributing power between both wheels.\u003c\/p\u003e\n\u003cstrong\u003eWhy would I choose a combo kit over separate parts?\u003c\/strong\u003e\n\u003cp\u003eA combo kit saves time and ensures all components are matched correctly for your specific ratio and spline count.\u003c\/p\u003e\n\u003cstrong\u003eDo I need to confirm fitment before ordering?\u003c\/strong\u003e\n\u003cp\u003eYes. Confirm your exact vehicle, differential, and spline count before ordering.\u003c\/p\u003e\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRemove the differential cover and carrier assembly.\u003c\/li\u003e\n\u003cli\u003eRemove the old ring and pinion gears, carrier, and bearings.\u003c\/li\u003e\n\u003cli\u003eInstall the new positraction unit, ring and pinion gears, bearings, and seals from this kit.\u003c\/li\u003e\n\u003cli\u003eSet backlash and verify the gear contact pattern, then torque all fasteners to specification.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":46417045028943,"sku":"YUKYGK2019","price":1757.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/yukon-8_6in-gm-4_56-rear-ring-pinion-install-kit-30-spline-positraction-axle-bearings-and-seals-yukon-gear-axle.jpg?v=1786990374","url":"https:\/\/www.blackopsautoworks.com\/products\/yukon-8-6in-gm-4-56-rear-ring-pinion-install-kit-30-spline-positraction-axle-bearings-and-seals","provider":"Black Ops Auto Works","version":"1.0","type":"link"}