{"product_id":"nitro-gear-axle-gpduramax-5-13-silverado-sierra-gear-package-kit-01-10-chevrolet-gmc-2500-and-3500hd-diesel-or-8-1l-5-13-ratio-nitro-gear-and-axle","title":"Nitro Gear \u0026 Axle GPDURAMAX-5.13 Silverado\/Sierra Gear Package Kit 01-10 Chevrolet\/GMC 2500 and 3500HD Diesel or 8.1L 5.13 Ratio Nitro Gear and Axle","description":"\u003cp\u003eSuffering from poor performance and reduced fuel economy resulting from oversized tires? A Nitro gear change will help get that performance and economy back! It is a common misconception that lower gears are only for hardcore off-roading, in actuality the average daily driven vehicle can see huge improvements in both performance and economy by properly matching their vehicles gear ratio to their tire size all while reducing strain on the vehicles drivetrain. We at Nitro Gear and Axle realize the difficulty for the average consumer or install shop to compile the list of parts and prices required when doing a gear change. To make it easier for everyone the experts at Nitro are introducing an industry first- Gear Packages for many popular 4x4 applications. One part number. One price.\u003cbr\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2001-2010 Chevrolet and GMC 2500 and 3500HD, Diesel or 8.1L, 5.13 Ratio, Nitro Gear Package Kit\u003c\/li\u003e\n\u003cli\u003eFront Differential: GM 9.25 Inch Rev. IFS\u003c\/li\u003e\n\u003cli\u003eRear Differential: (AAM) GM 11.5 Inch\u003c\/li\u003e\n\u003cli\u003eGear Ratio: 5.13\u003c\/li\u003e\n\u003cli\u003eQualifier: With Duramax or 8.1L\u003c\/li\u003e\n\u003cli\u003eManufacturer: Nitro Gear and Axle\u003c\/li\u003e\n\u003cli\u003eWarranty: 2 Years\u003c\/li\u003e\n\u003cli\u003eSold As A Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNitro Ring and Pinion Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eManufactured in South Korea\u003c\/li\u003e\n\u003cli\u003e8620 Steel Gear Forgings\u003c\/li\u003e\n\u003cli\u003ePrecision Machining\u003c\/li\u003e\n\u003cli\u003eCNC Triple-lapping\u003c\/li\u003e\n\u003cli\u003eHeat Treatment\u003c\/li\u003e\n\u003cli\u003eRockwell Hardness Tested\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eGear Package Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNitro front ring and pinion\u003c\/li\u003e\n\u003cli\u003eNitro front Master Install Kit (Includes Timken and Koyo Bearings)\u003c\/li\u003e\n\u003cli\u003eNitro rear ring and pinion\u003c\/li\u003e\n\u003cli\u003eNitro rear Master Install Kit (Includes Timken and Koyo Bearings)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTech Note:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOther required parts included in Nitro Gear Packages may include solid spacers, yokes or other components as noted.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFits Vehicles:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2001-2010 GMC Sierra 2500HD and 3500HD 4x4 w\/Duramax Diesel, or 8.1L gas\u003c\/li\u003e\n\u003cli\u003e2001-2010 Chevrolet Silverado 2500HD and 3500HD 4x4 w\/Duramax Diesel, or 8.1L gas\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ciframe width=\"640\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/KvB_LbTbpE4\" frameborder=\"0\" allow=\"autoplay; 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