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Ford Performance Ring Gear and Pinion Kit - 4.10 Gears (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

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  • Item 24002

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    Features, Videos & Details

    • Strong Forged Construction
    • For Street or Track Use
    • Ford Racing Quality
    • 4.10 Gear Ratio
    • 8.8" Ring Gear Diameter
    • Fits 1986-2014 V8 and 2011-2014 V6 (Excludes 2013-2014 GT500)

    Review & Installation Video

    I’m Justin with AmericanMuscle.com, and this is our acceleration pack bolt on build up for all 99-04 Mustang GTs. The focus of this pack is of course acceleration, but in order to accelerate faster you need traction, and lots of it. That’s why the majority of the parts used for our build today are focused on getting us off the line much quicker, ultimately resulting in faster acceleration. But before we go over all the parts we have in store for our 2000 GT here, let’s get it out of the shop and do a quick 0-60 baseline run, just to see where we stand now. Alright, before we go installing all of our parts for the acceleration pack, we’re going to do a baseline 0-60 run, using our iTSX wireless tuner and my iPad here, just to see where the car stands now, so hit start and here we go. Alright so it looks like we just clicked off a 6.66 0-60 time with our automatic 2000 GT, which is pretty average for this model car. Now we’re going to take our car back into the shop, talk a little bit more about some of the parts we have in store, and get them installed. Since traction is the theme of the day, what better way to get more of it, than by using a set of these NITTO NT555R Drag Radials, those large tread blocks paired with that real soft compound is going to give us a ton of grip both on the street and at the strip, and should really help our GT get off the line. To further help our GT hook we decided to go with some vital suspension components from QA1, starting with these box style rear lower control arms, these bars are a variation of the classic traction bar design, and basically help keep the rear axle from moving around under load, and especially on hard launches, eliminating any excessive wheel hop. We also decided to go with a set of these QA1 adjustable rear upper control arms, that are fully adjustable while still on the car. These are going to be key to adjusting our pinion angle which is not only important for traction, but also for driveline smoothness. These are really going to help firm up the rear end of the car, and eliminate any side to side sloppiness or wiggle, making the car track a lot straighter, and just making for an overall better driving experience. Moving away from our traction and getting into another big contributing factor to our acceleration, that’s right our gearing. From the factory, our automatic 2000 GT came with 3.27 gears, which is pretty weak for acceleration. That’s where these Ford Racing 4.10 gears come into play, simply put, that shorter gear ratio is going to help our car accelerate faster. Quite frankly, I’m quite anxious to see how it’s going to wake up our 2 valve motor. So now that you know what we have in store for our GT, we’re going to hand the car over to the crew and get everything installed, after they’re all done we’re going to take our GT back out on the street, just to see how it behaves on the road, and to see if we’ve improved on our 0-60 time. Alright so we’re out here on the street with our 2000 GT, we just had the acceleration pack installed by the guys back at the shop, and we’re just cruising, I mean the car is very mild mannered, we’re in overdrive, you’d never be able to tell there’s gears in the car, until you do a little squeeze on the throttle, and man does it go. It goes, it goes, and it hooks hard too. I mean we didn’t even have a chance to heat cycle the tires there and it just dead hooked on the street. Car is a little stiffer in the rear, that’s attributed to the stiffer bushings in both the QA1 lower and upper control arms, but that’s going to be a good thing, that’s going to help keep the car straight, going down the track, it’s also going to reduce our wheel hop as well, and overall just improve our acceleration. So now we’ve had the chance to drive the car around on the street a little bit, see how it reacts in everyday situations, we’re going to put it to the ultimate test, get it back to the shop, do a hard launch, and see if these parts work in lowering our 0-60 time. Alright, so we just finished up our second 0-60 run, and we just clicked off a 5.09 second 0-60, that’s over half a second off our baseline number, so it’s easy to see our acceleration pack is doing its job, and I’ve got to admit, those radials definitely helped us hook on the pavement. So that does it for the acceleration pack, be sure to check out our other 99-04 bolt on build ups where we make our GT handle a bit better, we give it some more power, and dress it up a little bit.

    See our 2011 GT Project Car Now

    Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

    Superior Quality. These Ford Racing 4.10 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

    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 Ford Racing Ring and Pinion Gear set will fit all 1986 to 2012 V8 Mustangs including GT, Bullitt, Mach 1, Cobra and the 2011-2014 V6 Mustangs equipped with the 8.8" rear end. 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.


    Installation & Tech
    Differential Gears - Installation Instructions! Differential Gears - Installation Instructions! Mustang Rear Gears - Tech Article Mustang Rear Gears - Tech Article

    Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

    MPN# M-4209-88410

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    Hardware included:
    • Ring
    • Pinion
    • Crush sleeve
    • Pinion nut
    • Shims
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 00, 01, 03, 04
    • Cobra R - 93, 95, 00
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
    • GT500 - 07, 08, 09, 10, 11, 12
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 86
    • V6 - 11, 12, 13, 14

    Fits Mustangs equipped with a 8.8" rear end

      Customer Photos (8) Submit Your Photo

      View All 8 Photos

        Questions & Answers (1)

        1 Top Rated Question

        Why are there 2 seperate Ford Performance gears available? One is for 99-04. And these are for 86-14?

        • The gears are categorized by the year-model selected, however, they are the same manufacturer's part number, M-4209-G410A. Sub-categorizing the gears by year range makes it a little easier for searching the product on the webpage.

        Helpful (0)
        Post Your Question

          Customer Reviews (100+) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$250-$500

          • Performance Gain 4.923077 4.9
          • Fit 4.897436 4.9



          • 5/5

            Installation Time: Weekend

            June 25, 2019

            Great gear for around town

            Im still somewhat breaking in the gears, but so far I like them quite a bit. Combined with a torsen diff, the car doesnt feel like its being overworked anymore, and i can use 5th around town so i doubt ill lose any mileage. These cars should have come with 4.10s from the factory, to make up for the lack of low end torque. Install was a PITA, but there is no gear noise whatsoever, and it feels tight. Definitely recommend for an N/A mustang

            TrestonH

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 11, 2019

            Works great

            Had them installed and work great. My mustang is lifted 8 inches and sits on 33s. This is exactly what I needed to keep the trans from burning up

            Mudtang904

            Year: 2012 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Weekend

            May 21, 2019

            4.10 Gear Install

            I ordered the 4.10 Ford Performance Gears because I heard you could just swap the old gears out for the new gears. It went better then I originally thought. Like it says online, I just reused the original shims and everything came into spec. Highly recommended. Thanks American Muscle.

            Delton

            Year: 2005 Submodel: GT

            Helpful (0)

          • 5/5

            May 20, 2019

            Ford 4.10 gear kit

            This Ford Performance Ring Gear and Pinion kit is well worth it. Big performance gain for less than $200. This is a no-brainer.

            mach1

            Year: 2004 Submodel: Mach 1

            Helpful (0)

          • 5/5

            Installation Time: Weekend

            May 18, 2019

            4.10 gears

            Easy install, did it in a parking lot and of man do they make a difference! I had 3.55 stock but went to 3.73 and I blew those gears up and had to hurry to get a set of gears. Unfortunately I had to go with a set of 3.08 until now! Love the gears!

            RobertB

            Year: 2007 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            May 17, 2019

            Love them

            I really love them very much thank you all for me buying them you will always have my business to keep buying from y’all

            ShawnC

            Year: 1996 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            May 01, 2019

            Looks nice

            Havent installed them yet but look great and was quick shipping and a good price.

            AndrewD

            Year: 2005 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            April 25, 2019

            01 Mustang GT

            One of the best upgrades you can do on your Mustang. A must-do

            2Fast4UJA

            Year: 2001 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 03, 2019

            The Best

            I’ve been a professional gear installer for over 30 years and I always recommend ford racing gears. Easy to read pattern and very quiet gears. Takes me about 4 hours on a gear swap. JohnnyGearz

            JohnnyGearz

            Year: 2005 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            April 01, 2019

            4.10 gears

            Perfect fit, gives that extra kick for the power your already making big difference in throttle response keepa you in the power band

            JacobC

            Year: 1996 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            March 09, 2019

            I love them

            Definitely happy with upping to 4.10 from my 3.31 definitely a lot more kick down low and kee the car always in the power band

            JoseA

            Year: 2007 Submodel: GT

            Helpful (0)

          • 5/5

            March 02, 2019

            Perfect

            Produit parfait super qualité Ford performance super

            CorlianoS

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            February 22, 2019

            Perfect gear for 197s

            This gear really wakes up your mustang and with a manual trans the rpms are low quiet gears very smooth

            PatrickP

            Year: 2010 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Weekend

            January 20, 2019

            Nice quality

            All parts needed were in kit. Made for easy i stallation.

            Ben

            Year: 1991 Submodel: LX

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            December 19, 2018

            4.10 For Christmas

            Upgraded my rear end for Christmas Ford performance rear end gears beautiful made

            SelwynA

            Year: 1994 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            December 11, 2018

            Great Kit

            To anyone that has a question yes you can do it yourself if you have some mechanical incline I did mine myself and I have had no issues at all

            ClaytonS

            Year: 1995 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            December 09, 2018

            horsepower

            it's fantastic for her car! precise precise fit. value for money in high quality. Thanks :-)

            ZsoltP

            Year: 2008 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            November 12, 2018

            Definitely what my 2013 GT500 needed!

            I have a 2013 Shelby GT500 Convertible and the stock gears took forever to wind out. After installing the new 4.10 Ford Racing Performance gears its a night and day difference.

            Mike2012

            Year: 2013 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Full Day

            October 30, 2018

            A great deal

            Everything was as ordered and a lot cheaper than buying from Ford even though their ford parts

            AlanH

            Year: 2003 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Full Day

            October 25, 2018

            Ring Pinion

            Install was easy if you are handy with tools you can do yourself,

            Mustangshane

            Year: 2002 Submodel: GT

            Helpful (4)

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