Free Shipping On Orders Over $75. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $10,000 in Store Credit! Enter Now >
Claim Your FREE Gift! Reveal Now >

Ford Performance Ring Gear and Pinion Kit - 4.56 Gears (05-09 GT)

Item 50385G05
AmericanMuscle no longer carries the Ford Performance Ring Gear and Pinion Kit - 4.56 Gears (05-09 GT). Please check out 2015-2021 Mustang Gears for an updated selection.
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$0.00

    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 2005-2009 GT, Bullitt and GT500 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 Ford Racing Speedometer Recalibration Tool is an inexpensive way to fix this issue.

    Application.
    This Ford Racing Ring and Pinion Gear set will fit all 2005 to 2010 V8 Mustangs including the GT, Bullitt and GT500 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.

    Attention 2010 and newer Mustang Owners. Starting in 2010 Ford changed the inner rear gear pinion bearing in all 8.8" equipped Mustangs. Because of this you will require a new 8.8" rear gear pinion bearing (Ford part# 9L3Z-4630-A) for proper installation, please see drop down option above.

    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 2005-2010 GT


    Manual
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 4753 6654        
    2 2812 3937 5062 6187    
    3 1856 2599 3341 4084 4826 5569
    4 1406 1969 2531 3094 3656 4219
    5 956 1339 1721 2104 2486 2869


    Automatic
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 4528 6339        
    2 3220 4508 5796      
    3 2166 3032 3898 4764 5630 6497
    4 1406 1969 2531 3094 3656 4219
    5 998 1398 1797 2197 2596 2995

    Questions & Answers

    10 More Questions

        Related Mustang Categories