{"product_id":"inmotion-wthm89210-differential-pinion-race-front-inner-rear-inner-or-rear-outer","title":"InMotion WTHM89210 Differential Pinion Race - Front Inner, Rear Inner or Rear Outer","description":"\u003ch2\u003eInMotion Differential Pinion Race WTHM89210\u003c\/h2\u003e\u003cp\u003eThe InMotion WTHM89210 differential pinion race is built for driveline service where consistent bearing support and low-friction rotation matter. Made from case carburized steel, it is suited for rear, front, and independent carrier applications across a wide range of Chevrolet, GMC, Cadillac, and other vehicle platforms.\u003c\/p\u003e\u003cp\u003eWith a compact 0.892-inch width, 3.125-inch outside diameter, and 0.13-inch bearing cup radius, this pinion race is sized for precise differential bearing fitment. The WTHM89210 is a practical replacement for technicians servicing rear outer, rear inner, and front inner differential positions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCase carburized steel construction for strength and wear resistance\u003c\/li\u003e\n\u003cli\u003e0.892 in. width and 3.125 in. outside diameter\u003c\/li\u003e\n\u003cli\u003e0.13 in. bearing cup radius for proper race geometry\u003c\/li\u003e\n\u003cli\u003eSupports rear outer, rear inner, and front inner differential applications\u003c\/li\u003e\n\u003cli\u003eDirect-fit service part for a broad range of driveline repairs\u003c\/li\u003e\n\u003cli\u003ePart number WTHM89210 for accurate ordering and lookup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis differential pinion race is engineered for vehicles that rely on stable bearing contact inside the axle assembly. The case carburized steel construction helps the race maintain surface durability under load, while the dimensional profile supports smooth pinion bearing operation in the differential. It is a strong service choice for applications such as 2014-2018 Chevrolet Silverado 1500 rear outer with 9.76in ring gear, 2014-2018 GMC Sierra 1500 rear outer with 9.76in ring gear, and 2004-2012 Chevrolet Colorado front inner with independent carrier assembly. The WTHM89210 also covers many older rear inner applications across Chevrolet, GMC, Cadillac, Pontiac, Isuzu, Honda, Mitsubishi, and Dodge platforms.\u003c\/p\u003e\u003cp\u003eThis part cross-references common aftermarket differential bearing applications for the same service position.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNoise from worn or damaged differential pinion bearing surfaces\u003c\/li\u003e\n\u003cli\u003eExcessive play or poor bearing seating in the axle assembly\u003c\/li\u003e\n\u003cli\u003eRough rotational movement inside the differential\u003c\/li\u003e\n\u003cli\u003eWear-related driveline vibration tied to bearing support issues\u003c\/li\u003e\n\u003cli\u003eService replacement needs during axle rebuilds and differential repairs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify axle type, ring gear size, and bearing position before installation. This part is listed for rear outer, rear inner, and front inner locations depending on the vehicle application, so match the exact fitment row to the vehicle being serviced. Confirm the differential assembly style, including independent carrier assembly or AAM\/GMC axle notes where specified. For best results, inspect related bearings and races during rebuild service and replace worn components as a set when required by the repair.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eInMotion manufactures this pinion race from case carburized steel to support durable differential service across a wide range of automotive applications. The WTHM89210 is specified for direct-fit use in confirmed vehicle listings, including Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Colorado applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2014-2018 Cadillac Escalade, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 Cadillac Escalade ESV, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 Chevrolet Silverado 1500, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 Chevrolet Tahoe, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 GMC Sierra 1500, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014-2018 GMC Yukon, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2015-2018 GMC Yukon XL, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2010-2015 Chevrolet Camaro, rear inner, with 7.6in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014 Chevrolet Suburban 1500, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2014 GMC Yukon XL 1500, rear outer, with 9.76in ring gear\u003c\/li\u003e\n\u003cli\u003eFits 2004-2012 Chevrolet Colorado, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003cli\u003eFits 2004-2012 GMC Canyon, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003cli\u003eFits 2006-2010 Hummer H3, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003cli\u003eFits 2009-2010 Hummer H3T, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003cli\u003eFits 2007-2008 Isuzu i-370, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003cli\u003eFits 2006 Isuzu i-350, front inner, with Independent Carrier Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAdditional confirmed applications span 1981-2018 model years across multiple rear inner and rear outer differential configurations.\u003c\/p\u003e","brand":"InMotion","offers":[{"title":"Default Title","offer_id":52406890692789,"sku":"HKKS-WTHM89210","price":14.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WJ_WTHM89210_Fro2.jpg?v=1777775182","url":"https:\/\/www.partcatalog.com\/products\/inmotion-wthm89210-differential-pinion-race-front-inner-rear-inner-or-rear-outer","provider":"PartCatalog","version":"1.0","type":"link"}