2010-14 Mustang Ford Performance 3.55 Gear Kit for 8.8" Rear End by Ford Performance

Mustang Ford Performance 3.55 Gear Kit for 8.8" Rear End (10-14)

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  • Ford Performance Mustang 3.55 Gear Kit for 8.8" Rear End (10-14)
Ford Performance Mustang 3.55 Gear Kit for 8.8" Rear End (10-14)

Get better acceleration and performance from your 2010-2014 Mustang with this 3.55 rear end gear kit!

Item #LRS-4209FRF-K

Your Price: $309.99

Market Price:$347.93
You Save 10.90 % ($37.94)

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  • Improved Acceleration
  • Eliminates Guesswork
  • Everything You Need To Do The Job Right


  • 3.55 Ratio
  • Royal Purple Gear Oil Virtually Eliminates Wear
  • Friction Modifier Provides Smooth Operation & Prevents Chatter

What's in the Box

  • (1) 3.55 Ring Gear
  • (1) 3.55 Pinion Gear
  • (1) Master Bearing & Shim Kit
  • (1) Bottle Friction Modifier
  • (2) Bottles 75w140 Gear Oil

Product Description

Better Acceleration
This Ford Performance 3.55 rear end gear kit is perfect for getting faster acceleration in your 2010-2014 Mustang! This kit fits 8.8" rear ends and includes everything you need to swap out or upgrade your stock gears. This kit includes Ford Performance 3.55 rear end gears, bearings, shims, gaskets, seals, gear oil, friction modifier and all of the hardware needed to get them installed. These performance gears do not add horsepower, but will definitely get your Mustang getting off the line faster!

Royal Purple Max-Gear Gear Oil
This Royal Purple gear oil is an ultra-tough automotive gear oil. It’s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls. Max-Gear outperforms other gear oils because it combines the highest quality synthetic oils with Royal Purple’s proprietary Synslide additive technology.

Ford Performance Friction Modifier
This friction modifier is a specially formulated additive to provide smooth operation of clutch-type limited-slip differentials. 1 bottle of friction modifier is required when changing the gear oil in rear ends equipped with Ford traction-lock units.

Installation Note
Although the Royal Purple gear oil has friction modifier mixed in, it is still recommended that you use the bottle of Ford Performance friction modifier to supply your 8.8 rear end with the proper amount of modifier.

- Fits 2010-2014 Mustang w/ 8.8" Rear End

Due to Hazmat regulations, lubricants/fluids cannot be shipped to APO/FPO addresses.

Ford Performance Racing Parts - NO WARRANTY - Click Here

Speedometer Correction
After installation of rear gears, you will need to correct the speedometer. There are different methods to do this depending on year model.

1979-1995 Speedometer Correction - Click Here

1996-2017 Speedometer Correction - Click Here

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  • Product Videos

    Mustang Rear End Gear Installation: Ford Racing 8.8 Ring & Pinion

    Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

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    Product Reviews (2)

    out of 5 stars
    4.5 stars
    2 reviews
    5 stars    1
    4 stars    1
    3 stars    0
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    2 of 2 REVIEWS
    2 of 2 REVIEWS

    5 Stars   Just what my Mustang needed!
    By on 5/7/2015
    Due to some serious medical complications my docs tell me not to drive a car with a manual tranny anymore so my 2014 Mustang GT had to have an auto, and I could not find one with anything other than the 3.15 rear end. I ordered this kit and had a Ford dealer install it so as to protect my warranty. This is a perfect fit for my Mustang! There seems to be less of a "hole" when I start out from a dead stop. Acceleration is more lively and with the select shift I can actually get farther faster than friends with a manual transmission and the 3.73 rear. My local dealer was reasonable in what they charged as well. Shipping was fast, the car was in and out of the dealer in six hours, and I have a big grin on my face when I drive this now. This should be the rear gear in all automatic transmission Mustangs.
    Highly recommended!

    Yes, I would recommend this item to a friend!

    Was this review helpful to you?

    4 Stars   3:55 Gears
    By on 4/21/2015
    The 3:55 gears are the perfect option. Really gets the car in the power band right away but still has great freeway manners. I am at 2400 rpms at 80 mph. Its a different car and the way it should have been.

    Yes, I would recommend this item to a friend!

    Was this review helpful to you?

    Vehicle Applications

    Ford Mustang - 2010 (10) - 2011 (11) - 2012 (12) - 2013 (13) - 2014 (14)

    About This Brand

    Ford Performance
    Ford Performance - Mustang Ford Racing Parts
    Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning.

    LMR.com is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at LatemodelRestoration.com. If you want the best for your Mustang or SVT Ligtning, look no further than Ford Performance Parts!

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