Motive Gear G885-2.73, Differential Ring & Pinion, For GM 8.5"/8.625", Gear Ratio 2.73, 10-Bolt, 30 Spline Pinion, 41 Ring Tooth - Fits GM, Chevy, GMC, Cadillac, Replaces 2-2021-273, GM10-273, GM85273

High-Performance Motive Gear G885-2.73 Ring & Pinion Set – 2.73 RatioEngineered for GM 8.5"/8.625" 10-bolt axles, the Motive Gear G885-2.73 ring and pinion set delivers reliable performance, long-term durability, and quiet operation for everyday driving, light towing, and restoration projects. Manufactured from premium 8620 steel for strength and precision fitment.Key FeaturesGear Ratio: 2.73Ring Gear Diameter: 8.5"Ring Gear Tooth Count: 41Pinion Gear Tooth Count: 15Pinion Shaft Diameter: 1.626"Pinion Spline Count: 30Ring Gear Material: 8620 SteelBolt Count: 10 Ring Gear BoltsVehicle CompatibilityFits GM 8.5"/8.625" 10-Bolt Front and Rear Axles with 2.73 Ratio and Standard Carrier Configuration.Buick1973–1975 Apollo1971–1973 Centurion1973–1977 Century1991–1996 Commercial Chassis1971–1990 Electra1971–1981 Estate Wagon1971–1985 LeSabre2004–2007 Rainier1973–1977, 1984–1987 Regal1977–1978 Riviera1991–1996 Roadmaster1970–1972, 1975–1979 SkylarkCadillac1987–1992 Brougham1977–1984 DeVille1999–2000, 2002–2013 Escalade, Escalade ESV, Escalade EXT1977–1987, 1993–1996 Fleetwood1976–1979 SevilleChevrolet1987–2005 Blazer1977–1999 C/K 10, 1500, 2500 Trucks & Suburban1995–2013 Suburban 15001999–2020 Silverado 15001994–2004 S10, 1983–1994 S10 Blazer2002–2009 Trailblazer, 2002–2006 Trailblazer EXT1995–2013 Tahoe1970–2006 Camaro, Caprice, El Camino, Impala, Malibu, Monte Carlo, Nova2007–2013 Avalanche, Express 15002003–2006 SSRGMC1970–2005 Jimmy, C/K Series, Yukon, Yukon XL 15001999–2020 Sierra 15001996–2013 Savana 15002004–2012 Canyon1994–2004 Sonoma1992–1993 TyphoonOther Brands2006–2010 Hummer H3 & H3T2003–2008 Isuzu Ascender1971–1996 Oldsmobile 442, 98, Cutlass, Delta 88, Custom Cruiser1971–1986 Pontiac Bonneville, Grand Prix, Firebird, LeMans, GTO, Ventura2005–2009 Saab 9-7xReplaces OEM & Aftermarket Part NumbersMotive Gear: GM10-273G2 Axle & Gear: 2-2021-273EXCEL from Richmond: GM85273Warranty & Quality AssuranceBacked by a 2-Year / 100,000-Mile Warranty, Motive Gear products are trusted for OEM-quality construction, reliable street performance, and long service life. Ideal for restoration, upgrades, or daily driving applications.

• Designed for GM 8.5" and 8.625" 10-bolt axles with 2.73 ratio and numerically higher carrier; precision-cut ring & pinion set for performance and longevity.
• Premium 8620 steel ring gear with 41 teeth, paired with a 30-spline pinion (15 teeth) and 1.626” shaft diameter for OE fit and strength.
• Standard rotation with a 10-bolt design; ideal for rear or front differential applications across a wide variety of GM platforms.
• Compatible with hundreds of vehicles from GM, Chevrolet, GMC, Cadillac, Buick, Oldsmobile, Pontiac, Saab, Isuzu, and Hummer from 1970–2020.
• Replaces G2 Axle & Gear 2-2021-273, Motive Gear GM10-273, and EXCEL GM85273; backed by a 2-Year / 100,000-Mile limited warranty.