EXCEL from Richmond Shelby GT500 Ring Gear and Pinion Kit Gears

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  • Regular price $164.99
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  • Superior Quality
  • 8.8" Ring Gear Diameter
  • For Street or Track Use
  • Made in the USA
  • Fits 2010-2014 Shelby GT500

Product Resources

Improve Off The Line Acceleration. Are you looking for a way to get your V8 powered 2010-2014 Mustang up and moving faster from a standing start? If so, you should consider upgrading to a set of Richmond Excel 3.55 Ring and Pinion Gears. Installing a set of steeper gears will place your Pony into its power band much quicker for improved low end torque and faster acceleration times. A set of Richmond Excel 3.55 Ring and Pinion Gears are a great choice for daily drivers who are concerned about fuel economy while still wanting better driving performance.

Superior Quality. Richmond proudly manufactures their Ring and Pinion Gear Sets right here in the USA. Using state-of-the-art manufacturing processes and extensive quality control testing, Richmond produces a superior quality Ring and Pinion Gear Set at an excellent price. Richmond is so confident in the quality of their products that they back them with a 6 month, 50,000 mile no-nonsense warranty.

Required Upgrade. 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. 

Recommended Upgrade. Please note that when changing the gear ratio of your Mustangs rear differential that the calibration of your speedometer will no longer be correct and will display the wrong speed. However, you can easily fix this annoying issue with a Handheld Tuner (sold separately).

Application. These Richmond Excel Ring and Pinion Gear set will fit all 2010 to 2014 V8 Mustangs equipped with an 8.8" solid axle rear end, including the GT, and Shelby GT500 models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, 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.