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Nitro Gear & Axle Ring and Pinion Gear Kit; 3.90 Gear Ratio (94-04 Mustang Cobra)Find parts that fit my vehicle

Item 404762
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AmericanMuscle no longer carries the Nitro Gear & Axle Ring and Pinion Gear Kit; 3.90 Gear Ratio (94-04 Mustang Cobra). Please check out 1979-1993 Foxbody Mustang Drivetrain for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation

    Features

    • Ring Gear and Pinion Kit
    • 3.90 Gear Ratio to Transfer Extra Power to Wheels
    • Enhances Acceleration
    • 30-Spline Pinion
    • Precision Machined Using Heavy Duty 8620 Steel
    • Compatible with 10 Ring Gear Bolts
    • 8.80-Inch Ring Gear Diameter
    • Computer Controlled and Heat Treated
    • CNC-Cut, Triple-Lapped Composition
    • Improves Low-End Torque and Acceleration
      Made in the U.S.A.
    • 2-Year Warranty
    • Hard Difficulty Installation
    • Fits All 1994-2004 Ford Mustang Cobra Models

    Description

    Aggressive Power. The Nitro Gear & Axle Ring Gear and Pinion Kit - 3.90 Gears is engineered to deliver big in torque by optimizing the ratio of the ring and pinion grooves. With each spin, you’ll get greater force and increased torque creating aggressive power.

    Low-End Torque. Featuring a 3.90 gear ratio, you’ll get extra power transferred to your wheels which in turn creates more energy for acceleration. With a 30-spline pinion and an 8.80-inch ring gear diameter, this low-end torque is definitely a game changer for your Mustang.

    Superior Construction. Proudly made in the USA, this precision machined construction features heavy-duty 8620 steel that is CNC-cut, triple-lapped, and heat treated. Crafted to be a perfect fit, this gear kit is exactly what you need to tap into your Mustang’s power potential.

    Installation. This difficult install can be completed in 4 hours or less. The manufacturer suggests an experience drivetrain mechanic complete this install due to the level of skill required for a secure installation.

    Warranty. The manufacturer stands behind this gear kit with a 2-year limited warranty. Any defect found as a result of faulty manufacturing will be covered in full.

    Application. The Nitro Gear & Axle Ring Gear and Pinion Kit - 3.90 Gears is built to be a precision fit for all 1994-2004 Ford Mustang Cobra models.

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    Installation & What's in the Box

    Installation Info

    Installation Time

    (approx) 4 Hours

    Difficulty Level:

    Mechanical expertise or professional installation required.

    Installation Guides

      No guide available for this part yet.

    What's in the Box

    • (1) Ring Gear
    • (1) Pinion Gear
    4.7

    Reviews of Nitro Gear & Axle Drivetrain Products (18)

    Brand Image

    Reviews of Nitro Gear & Axle Drivetrain products have an average rating of 4.7 out of 5

    Questions & Answers

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