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Ford Performance Ring Gear and Pinion Kit - 3.31 Gears (10-14 GT)

Market Price $182.99 You Save 9% ($17.00)
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  • Item 50470G11

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    Features & Details

    • Ford Racing Quality
    • Strong Forged Construction
    • 3.31 Gear Ratio
    • 8.8" Ring Gear Diameter
    • For Street or Track Use
    • Fits 2010-2014 GT Mustangs
    Upgrade OEM Gears. Are you looking to upgrade to a stronger set of rear gears? Then look no further than installing a set of genuine Ford Racing Gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, and race applications.

    Superior Quality. Manufactured in the USA, these Ford Racing Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and are completed in a black oxide finish to resist corrosion.

    Application. This Ford Racing Ring and Pinion Gear set will fit all 2010 to 2014 GT Mustangs. 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: 2010 2011 2012 2013 2014 Details

    MPN# M-4209-88331

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Ring gear
    • (1) Pinion gear
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Customer Reviews (7) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Performance Gain 4.857143 4.9
    • Fit 5 5

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      April 16, 2018

      3.31 gears

      These gears are great with my Roush charged 13 gt. I had 3.73 gears and I would have to shift @7600 to stay in fourth in the 1/4. Now I can shift @7200 and I get better trection.


      Year: 2013 Submodel: GT

      Helpful (12)

    • 4/5

      Installation Time: Afternoon

      September 03, 2017

      Great Product

      Well machined product. Ford Racing box is too fragile for a such heavy's component and a long travel til France .... There is always a little in rear axle noise, but i think it's certainly an adjustment to make


      Year: 2010 Submodel: GT

      Helpful (11)

    • 5/5

      July 24, 2017

      Motorsport 3.31 gears

      Excellent gears. Changed from 4.10 for turbo build.


      Year: 2011 Submodel: GT

      Helpful (13)

    • 5/5

      Installation Time: Full Day

      December 10, 2015

      Go to a professional installer or Ford High performance dealer

      Always check the codes on your car - standard Ford factory specs sometimes limit gear choices unless you go with an after market tuner. First set of gears were cut wrong (defective on the coast side) of the gear, whined like a Bobcat. So most of the day was a total waste. Second set worked like a charm. Highlight of the story, dealer covered all the extra time and expense and included a rental car for the day. I was told that this rarely happens, but it happened to me, So the little extra expense to pay the dealer paid off big time in this case. Choose your dealer or installer wisely, I am fortunate to have a High Performance Ford dealer in my area. Besides having high confidence in the dealer, I went there to keep the warranty valid.


      Year: 2014 Submodel: V6 Philadelphia

      Helpful (12)

    • 5/5

      Installation Time: Afternoon

      July 17, 2015

      3.31 ford racing ring pinion

      Great quality gears , easy to install with the proper tools.


      Year: 2013 Submodel: Other Indianapolis, IN

      Helpful (13)

    • 5/5

      Installation Time: Full Day

      December 18, 2014


      Gears went on great. But after 50k hard miles i had missing chunks from my spider gears.


      Year: 2012 Submodel: GT Denver, CO

      Helpful (13)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      November 08, 2013

      good all around gear

      this is for the guys that are putting power adders on their 3.73 cars and find that 3.73 gearing way to short. im running a 295/55/15 tire and these 3.31 gears. makes for good long gears for building boost on turbo mustangs.


      Year: 2011 Submodel: GT pa

      Helpful (12)

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