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Motive Gear Performance Plus Ring Gear and Pinion Kit - 4.30 Gears (05-09 GT)

Market Price $270.99 You Save 12% ($31.63)
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  • Item 21104G05

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    Features & Details

    • Superior Quality
    • CNC-Cut from 8620 Gear Steel
    • 4.30 Gear Ratio
    • 8.8" Ring Gear Diameter
    • For Street or Track Use
    • Fits 2005-2009 GT, Bullitt and GT500 Mustangs
    Improve Overall Performance. Improve your V8-powered Mustang's off-the-line responsiveness with a set of 4.30 gears from Motive. Steeper gears get you into your power band faster for improved acceleration and lower times. A set of 4.30 gears are a great choice for the performance-oriented Pony that still needs to be driveable on the street.

    Superior Construction & Precision Fit. These Motive ring and pinon gears are CNC cut from high grade 8620 gear steel, and factory lapped for precision fit. Each set is hardness tested prior to leaving the factory to ensure the highest quality. Unlike other brands, Motive Gears do not have a reputation for "gear whine".

    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 Motive Performance Plus 4.30 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.

    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: 2005 2006 2007 2008 2009 Details

    MPN# F888430

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Ring gear
    • (1) Pinion gear
    Installation Info
    Tech Specs

    Approximate RPM for 2005-2010 GT

    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 4482 6275        
    2 2652 3713 4774 5835 6895  
    3 1750 2451 3151 3851 4551 5251
    4 1326 1856 2387 2917 3448 3978
    5 902 1262 1623 1984 2344 2705

    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 4270 5978        
    2 3037 4251 5466 6681    
    3 2042 2859 3676 4493 100%9 6126
    4 1326 1856 2387 2917 3448 3978
    5 941 1318 1695 2071 2448 2824
    Will it fit my Mustang?

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          Customer Reviews (3) Write a Review

          Overall Rating 5

          out of 5 stars

          • 5/5

            March 09, 2010

            Motive 4.30's

            Switched from 4.10s, and like these even better. I can only imagine how much I'd love them if I was still cruising around with 3.27's.


            Helpful (3)

          • 5/5

            February 04, 2009

            Motive is the way to go

            Great product, No gear noise and pulls really hard!

            Jordan D

            Helpful (3)

          • 5/5

            November 29, 2007

            Wake Up Call!!!

            If you are on the fence to go with 4.10\'s or 4.30\'s with your mustang (manual). I say go all out with 4.30\'s. At 70 mph my tach rides at just a hair under 2.5k. The car strait up scoots. (Take your time with install) No gear howl to report. Great product. (Bearing kit w/shims is a must.) Great buying experience. Have and will buy from American Muscle again!!!


            Helpful (5)

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