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Ford Racing 3.15 Gears (10-14 GT)

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  • Item #50469G11
  • MPN# M-4209-88315

  • Market Price $173.99
  • You Save 17% ($29.01)
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  • Ford Racing quality
  • Strong forged construction
  • 3.15 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.

Mustang Fitment: 2010 2011 2012 2013 2014 Details

What's in the Box
  • (1) Ring gear
  • (1) Pinion gear
Installation Info
  • Boss 302 - 12, 13
  • GT - 10, 11, 12, 13, 14

Customer Photos

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Q & A (1 Questions, 1 Answers) Ask a Question

3.15 Gears Are these the stock rear axle gears on my 2011 GT with 6 Spd Auto Trans? Trying to decide whether to switch to 3.55 vs 3.73. This is a daily driver and I do have a 44 mile daily freeway commute each way, so I drive long miles. But it feels like the stock gearing is so focused on max mpg that I am frequently at lower RPM's than I want when I go to punch it. I get about 21.5 mpg combined city/hwy, which is probably 75% hwy driving.

coffee4matt Year: 2011 Model: GT

Good Question (0) (0)
  • Do you have an auto trans or not, if you have a manual don't change gears, the manual is close ratio, you don't want to change, I have the track pack, the 3.73 is too close, you can't shift fast enough to make it work out. I am going to change to the 3.15, or the 3.08, it will work much better, and get you better gas milelage by far.

    Helpful (0) (0)

    KOSS Year: 2014 Model: GT

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out of 5 stars

1 Customer Recommends this Product

Installation Time:Shop Install

Installation Cost:$250-$500

  • Performance Gain: 5 5/5
  • Fit: 5 5/5
  • Bang For Your Buck: 5 5/5
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  • 5/5 Yes, I recommend this product

    January 24, 2014

    High quality OEM Ford parts

    I have these gears installed on my Built motor/turbo 2011 GT. In my opinion this is the perfect gear choice when using a MT-82 trans and a 28" tire for a 800hp street car. My car now has nice long gears for highway pulls and still does great at the track.


    Year: 2011 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 pa

    Helpful (1) (0)

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