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Ford Performance Ring Gear and Pinion Kit - 4.56 Gears (86-93 V8)

Item 50385G87
AmericanMuscle no longer carries the Ford Performance Ring Gear and Pinion Kit - 4.56 Gears (86-93 V8). Please check out 2015-2021 Mustang Gears for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation

    Features

    • Ford Racing Quality
    • Strong Forged Construction
    • 4.56 Gear Ratio
    • 8.8" Ring Gear Diameter
    • For Street or Track Use
    • Fits 1986-1993 LX 5.0, GT, and SVT Cobra Mustangs

    Description

    Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

    Superior Quality. These Ford Racing 4.56 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

    Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a new Speedometer Gear is an inexpensive way to fix this issue.

    Application. This Ford Racing Ring and Pinion Gear set will fit all 1986 to 1993 V8 Mustangs including the GT, 5.0 LX and Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

    Please Note. Due to the high numeric gear ratio, it will require a notched gear cross pin for proper installation.

    Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.

    Fitment:

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

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Ring gear
    • (1) Pinion gear

    Tech Specs

    Approximate RPM for 1986-1993 GT


    Manual
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 4739 6635        
    2 2798 3918 5037 6156    
    3 1870 2618 3366 4115 4863 5611
    4 1406 1969 2531 3094 3656 4219
    5 942 1319 1696 2073 2450 2826


    Automatic
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 3375 4725 6075      
    2 2062 2887 3712 4537 5362 6187
    3 1406 1969 2531 3094 3656 4219
    4 937 1312 1687 2062 2437 2812

    Questions & Answers

    10 More Questions

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