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Find Ring & Pinion Gears for your Silverado 2500

Nitro Gear & Axle AAM 11.50/11.80-Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio (07-15 6.6L Duramax Silverado 2500 HD)Find parts that fit my vehicle

Item HS25656
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AmericanTrucks no longer carries the Nitro Gear & Axle AAM 11.50/11.80-Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio (07-15 6.6L Duramax Silverado 2500 HD). Please check out 2001-2006 Chevrolet Silverado 2500 Drivetrain for an updated selection.
8 Reviews of Nitro Gear & Axle
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    Product Information

    Features, Description, Q&A, Specs & Installation

    Features

    • Rear Axle Ring and Pinion Gear Kit
    • Has 4.30 Gear Ratio
    • CNC Triple‑Lapped Gears for Precision Mesh
    • Heat‑Treated 8620 Steel Forgings for High Strength
    • Improves Torque Transfer and Drivetrain Efficiency
    • Three-Hour Installation
    • Fits 2007-2015 6.6L Duramax Silverado 2500 HD Models

    Description

    Optimized Gear Ratio for Stronger Acceleration and Towing. The Nitro Gear & Axle AAM 11.50/11.80‑Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio 2007‑2015 6.6L Duramax Silverado 2500 HD is engineered to reshape your 6.6L Duramax Silverado 2500 HD’s performance where it counts most: acceleration, throttle response, and towing grunt. The 4.30 ratio boosts engine leverage at the wheels, helping your Duramax feel more eager off the line and more capable when hauling heavy loads, because big diesels deserve gearing that works *with* their torque curve instead of against it.

    Precision Machining for Long‑Lasting Strength. The Nitro Gear & Axle AAM 11.50/11.80‑Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio 2007‑2015 6.6L Duramax Silverado 2500 HD features gears cut with exacting tolerances to deliver smooth engagement and consistent contact patterns. This precision build helps reduce noise, vibration, and wear compared to worn factory gears, giving your rear end a durable, dependable power path that stands up to towing, frequent hauling, and high‑mile driving.

    Balanced Performance for Daily and Heavy Use. with a 4.30 gear ratio, the Nitro Gear & Axle AAM 11.50/11.80‑Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio 2007‑2015 6.6L Duramax Silverado 2500 HD strikes a thoughtful balance between responsive acceleration and cruising comfort. It helps maintain reasonable highway RPMs while giving you more usable torque at lower speeds, ideal for drivers who want towing confidence without turning every highway run into an engine scream fest.

    Installation. Putting this Nitro Gear & Axle AAM 11.50/11.80-Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio on your 6.6L Duramax Silverado 2500 HD takes 3 hours to install.

    Application. The Nitro Gear & Axle AAM 11.50/11.80-Inch Rear Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio fits 2007-2015 6.6L Duramax Silverado 2500 HD models.

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    Installation & What's in the Box

    Installation Info

    Installation Time

    (approx) 3 Hours

    Difficulty Level:

    Light to Moderate mechanical skill required.

    Installation Guides

      No guide available for this part yet.

    What's in the Box

    • (1) Ring Gear
    • (1) Pinion Gear
    • Hardware
    4.8

    Reviews of Nitro Gear & Axle Drivetrain Products (8)

    Questions & Answers

    No questions about this product yet. Ask the First Question