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Richmond Super 8.8 Ring and Pinion Gear Kit; 3.91 Gear Ratio (15-25 Mustang)Find parts that fit my vehicle

Item 406943
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AmericanMuscle no longer carries the Richmond Super 8.8 Ring and Pinion Gear Kit; 3.91 Gear Ratio (15-25 Mustang). Please check out 1979-1993 Foxbody Mustang Drivetrain for an updated selection.
$0.00
3 Reviews

    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation

    Features

    • Ring Gear and Pinion Kit
    • 3.91 Gear Ratio
    • Compatible with 3.31 Ratio Carrier and Higher
    • Ford Super 8.8 Differential Case Design Type
    • 12 Cover Bolts
    • 8620 Steel Ring Gear Material
    • Made in the U.S.A.
    • 2-year, 100,000 “No-Nonsense” Warranty
    • Difficult Installation
    • Compatible with All 2015-2025 Ford Mustangs

    Description

    High-Performance Drivetrain Product by Richmond. Improve your axle rotation with the high-performance Richmond Super 8.8 Ring Gear and Pinion Kit - 3.91 Gears. This American-made ring gear and pinion kit delivers the goods with precision engineered, computer heat treated parts to withstand the rigors of the trails.

    3.91 Ratio. This unit provides a 3.91 ring and pinion gear ratio with a 3.31 or higher carrier break, Ford Super 8.8 differential case design type, and an 8.8-inch ring gear diameter, along with a 43 ring gear tooth count.

    Warranty. Richmond guarantees your product is free from defects in materials and workmanship with a 2-year, 100,000 “no-nonsense” warranty. Damage as a result of abuse, neglect or poor quality maintenance will not be covered.

    Installation. You should expect to take no more than 3 hours installing this product, with a hard level of difficulty if you have light to moderate mechanical skills.

    Application. The Richmond Super 8.8 Ring Gear and Pinion Kit - 3.91 Gears is compatible with all 2015-2025 Ford Mustangs.

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

    Installation & What's in the Box

    Installation Info

    Installation Time

    (approx) 3 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 and Pinion Kit
    5.0

    Customer Reviews (3)

    Brand Image

    Reviews of Richmond Drivetrain products have an average rating of 4.8 out of 5

    Questions & Answers

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