Richmond Gear 49-0005-1, Differential Ring & Pinion, For GM 7.5"/7.625", Gear Ratio 3.42, 10-Bolt, 26 Spline, 11 Pinion & 37 Ring Tooth -Fits Buick/Cadillac/Chevrolet/Hummer/GMC/Rep. Motive G875342X

High-Performance Richmond Gear 49-0005-1 Ring & Pinion Set – 3.42 RatioEngineered for GM 7.5"/7.625" 10-bolt axles, the Richmond Gear 49-0005-1 ring and pinion set delivers premium performance and durability for street, towing, or off-road use. With a thick ring gear design compatible with 3.08 and numerically lower carriers, this gear set ensures precise fitment and long-lasting operation under demanding loads.Key FeaturesGear Ratio: 3.42Ring Gear Diameter: 7.5"/7.625"Ring Gear Tooth Count: 37Pinion Gear Tooth Count: 11Carrier Compatibility: Thick gear design for 3.08 & numerically lower carriersRing Gear Material: 8620 SteelBolt Count: 10 Ring Gear BoltsVehicle CompatibilityFits GM 7.5"/7.625" 10-Bolt and 7.6" IFS axles with 3.42 Ratio and Thick Ring Gear configuration.Buick1973–1975 Apollo1977–1981 Century1991–1996 Commercial Chassis1976–1985 Electra1977–1983 Estate Wagon1975–1985 LeSabre1977–1979 Opel1977–1987 Regal1977–1978 Riviera1991–1996 Roadmaster1975–1979 SkylarkCadillac1987–1990 Brougham1982–1984 DeVille1982–1990 FleetwoodChevrolet1985–2005 Astro1995–2001 Blazer1982–2002 Camaro1977–1996 Caprice2004–2013 Colorado1977–1987 El Camino1977–1985, 1994–1996 Impala1973–1983 Malibu1978–1988 Monte Carlo1976–1979 Nova1982–2004 S101983–1994 S10 BlazerGMC2004–2012 Canyon1992–2005 Jimmy1982–1990 S151983–1991 S15 Jimmy1985–2005 Safari1991–2004 Sonoma1991 SycloneHummer2006–2010 H32009–2010 H3TReplaces OEM & Aftermarket Part NumbersMotive Gear: G875342XEXCEL from Richmond: GM75342TKWarranty & Quality AssuranceBacked by a 2-Year / 100,000-Mile Warranty, Richmond Gear products offer high-strength construction and reliable performance. Trusted by performance enthusiasts and professional builders alike for their precision engineering and lasting value.

• 10-Bolt Cover, Gear Ratio: 3.42, Pinion Gear Tooth Count: 11, Pinion Shaft Diameter: 1.626", Pinion Spline Count: 26, Ring Gear Outside Diameter: 7.5"/7.625", Ring Gear Tooth Count: 37, Thick Gear Design.
• Designed for GM 7.5", 7.625", and 7.6" IFS axles; requires a 3.08 or numerically lower ratio carrier due to its thick gear profile – ideal for gear ratio upgrades.
• Built from high-strength 8620 steel for enhanced durability and performance under high torque loads; engineered for both front and rear axle setups.
• Package includes 3.42 thick ring gear and matching 11-tooth pinion gear. Installation kit sold separately. Not compatible with high-ratio carriers without modification.
• Backed by Richmond Gear’s 2-Year or 100,000-Mile Warranty – a premium OE-replacement solution trusted by professionals for strength, fit, and longevity.