{"product_id":"yukon-pinion-install-kit-99-08-gm-8-6in","title":"USA Standard Pinion installation Kit For 99-08 GM 8.6in","description":"\u003ch4\u003eUSA Standard Pinion Installation Kit For 99-08 GM 8.6in Differential\u003c\/h4\u003e\n\u003cp\u003eThe Yukon Gear ZPKGM8.6-A is a pinion installation kit designed for GM 8.6-inch rear differentials found in 1999-2008 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. This kit supplies all the precision small parts needed to complete a ring and pinion gear swap or rebuild on lower-mileage axles where carrier bearings and races can be reused. The YUKZPKGM8.6-A kit features premium Koyo\/Timken bearings, high-quality seals, and all necessary small parts assembled to USA Standard Gear specifications so your gear set installs correctly the first time.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePinion installation kit for GM 8.6-inch (also referred to as 8.5-inch) rear differential\u003c\/li\u003e\n\u003cli\u003eIncludes premium Koyo\/Timken pinion bearings, races, seal, and small parts\u003c\/li\u003e\n\u003cli\u003eIdeal for lower-mileage rebuilds where carrier bearings are serviceable\u003c\/li\u003e\n\u003cli\u003eAll parts pre-selected to match GM 8.6-inch dimensional specifications\u003c\/li\u003e\n\u003cli\u003ePart number YUKZPKGM8.6-A \/ ZPKGM8.6-A eliminates guesswork on part selection\u003c\/li\u003e\n\u003cli\u003eBacked by Yukon Gear lifetime limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003eThe YUKZPKGM8.6-A pinion installation kit fits vehicles equipped with the GM 8.6-inch rear differential, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1999-2008 Chevrolet Silverado 1500\u003c\/li\u003e\n\u003cli\u003e1999-2008 GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2000-2006 Chevrolet Suburban 1500\u003c\/li\u003e\n\u003cli\u003e2000-2006 GMC Yukon\u003c\/li\u003e\n\u003cli\u003e2002-2009 Chevrolet TrailBlazer\u003c\/li\u003e\n\u003cli\u003e2002-2009 GMC Envoy\u003c\/li\u003e\n\u003cli\u003e2004-2008 Buick Rainier \/ Saab 9-7x (GM 8.6-inch equipped variants)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFront pinion bearing (inner)\u003c\/li\u003e\n\u003cli\u003eRear pinion bearing (outer)\u003c\/li\u003e\n\u003cli\u003ePinion bearing races (inner and outer)\u003c\/li\u003e\n\u003cli\u003ePinion seal\u003c\/li\u003e\n\u003cli\u003eCrush sleeve\u003c\/li\u003e\n\u003cli\u003ePinion shims (assorted)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\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\u003eSKU \/ MPN\u003c\/td\u003e\n\u003ctd\u003eYUKZPKGM8.6-A \/ ZPKGM8.6-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e883584290513\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGM 8.6-inch \/ 8.5-inch rear differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Brand\u003c\/td\u003e\n\u003ctd\u003eKoyo \/ Timken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit Type\u003c\/td\u003e\n\u003ctd\u003ePinion installation (carrier bearings not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat vehicles does the YUKZPKGM8.6-A fit?\u003c\/strong\u003e This kit fits 1999-2008 GM 1500-series trucks and SUVs equipped with the GM 8.6-inch rear differential, including Silverado 1500, Sierra 1500, Suburban 1500, and Yukon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the difference between the GM 8.6-inch and GM 8.5-inch differential?\u003c\/strong\u003e The 8.6-inch axle replaced the 8.5-inch and shares similar dimensions. The ZPKGM8.6-A covers both designations on applicable model years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this kit include carrier bearings?\u003c\/strong\u003e No. This is a pinion-only installation kit intended for rebuilds where carrier bearings are still serviceable. A full bearing kit includes carrier bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat brand bearings are included?\u003c\/strong\u003e The kit uses premium Koyo or Timken bearings depending on current supply, both of which meet or exceed OE specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill this work with aftermarket ring and pinion gears?\u003c\/strong\u003e Yes. The YUKZPKGM8.6-A is designed to work with any brand of ring and pinion set dimensioned for the GM 8.6-inch differential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I need a crush sleeve eliminator?\u003c\/strong\u003e The kit includes a standard crush sleeve. If you are building a high-performance or off-road application requiring repeated disassembly, a crush sleeve eliminator can be used instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat warranty covers this product?\u003c\/strong\u003e Yukon Gear provides a lifetime limited warranty against defects in materials and workmanship. Coverage is protected under the Magnuson-Moss Warranty Act for drivetrain components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs professional installation recommended?\u003c\/strong\u003e Yes. Gear and differential installations require precise bearing preload and backlash setup. A professional with the appropriate tooling is strongly recommended.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003cp\u003e1. Drain differential fluid and remove the axle shafts and carrier assembly. 2. Press out the old pinion bearing races and clean the housing bore. 3. Press in the new races from the YUKZPKGM8.6-A kit. 4. Assemble the pinion with inner bearing and selected shims to achieve the correct pinion depth. 5. Install the crush sleeve and outer pinion bearing. 6. Press in the new pinion seal. 7. Torque pinion nut in increments to achieve the specified preload. 8. Reinstall carrier and set backlash per ring and pinion gear specifications. 9. Refill with appropriate gear lubricant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProp 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":45974399287375,"sku":"YUKZPKGM8.6-A","price":106.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/481b2c81aa9f0c4262a785ffbfa3529e.jpg?v=1782533583","url":"https:\/\/www.blackopsautoworks.com\/products\/yukon-pinion-install-kit-99-08-gm-8-6in","provider":"Black Ops Auto Works","version":"1.0","type":"link"}