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Ford Performance 4.10 Gears (10-14 GT)

Market Price $173.99 You Save 17% ($29.01)
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  • Item 24002G11
  • MPN# M-4209-G410A

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Features, Video & Details

  • Ford Racing Quality
  • Strong Forged Construction
  • 4.10 Gear Ratio
  • 8.8" Ring Gear Diameter
  • For Street or Track Use
  • Fits 2010-2014 GT and 2010-2014 GT500 Mustangs

Review & Installation Video

Review & Install Video

JUSTIN: Hey, I'm Justin with, and this is our powerpack Bolt-On Build-Up for all 94-98 Mustang GTs. Now before we get started, we're well aware of the fact that the 94-95 GTs came equipped with the 5.0 motor before eventually being replaced by the modular 4-6 in 1996. So, with that said, all the parts used here on our '98 today, will not apply to those earlier years, but the idea remains the same, to increase the power. So that's why we put together a pack of parts that should help our GT breathe a lot easier, in turn making for some more horsepower and torque, all while making for one mean exhaust note. Now, before we get started on our car, we need to grab a quick baseline number, and then hand that over to the crew to get everything installed. JUSTIN: Hey Mike, looks like the guys just finished up working on the car here, you want to walk us through a few of these mods? MIKE: Absolutely. JUSTIN: Well, I know we have a trio of parts from SR Performance under the hood, starting with their Cold-Air Intake system. What's up with that? MIKE: It's a very budget-friendly piece and it's going to give us the increase in airflow we're looking for, which is going to equate to more horsepower. JUSTIN: Speaking of increased airflow, we also went for the 70mm Throttle Body, as well as that Upper Intake Plenum from SR Performance, now these are big 2-valve mods, why are they so important? MIKE: Again, more airflow is going to create more horsepower. You can put a larger Throttle-Body on, but with the stock Plenum, you're not taking full effect of that larger opening, put the Throttle Body on along with the Plenum, get the total package. JUSTIN: Well, it looks like we definitely took intake side of things. As for the exhaust, I know we went with Pypes Off-Road X-Pipe, along with their Violator Series CatBack. Now, besides really cranking up the volume on our 4.6 L, what are some of the other benefits? MIKE: Well we're definitely getting a louder exhaust note because we deleted the catalytic converters, besides the louder sound, we're going to increase the airflow by not going with the factory restrictive sized exhaust pipe, and out back those 3.5" chrome tips are really going to look good. JUSTIN: Absolutely man, well I know we tweaked a lot of stuff here on our 2-valve motor, it's going to be seeing a lot more air than it did before, do we need a tune with these mods? MIKE: These parts don't necessarily require a tune, but we're going to put on one of our Bama performance tunes to modify the fuels, the spark, the speed limiters, rev-limiters, and the cooling fan temps to help make this the total package. JUSTIN: Well, I can't wait to see what this combination's going to put down. You ready to make another another pool? MIKE: Absolutely, let's do it. JUSTIN: So our baseline run with our '98 GT gave us 185 horsepower and 252 ft/lbs of torque. With our powerpack installed, we were able to put down 210 and 283 ft/lbs of torque, making for a peak horsepower gain of 25 over our baseline numbers, and gains of 26 horsepower and 34 ft/lbs of torque throughout the curve. Well, now that we have the numbers we're looking for, it's time to get our GT off of the dyno and out onto the streets so we can have a little fun with some of that new-found power, and, honestly, I'm pretty excited to see that Pypes combination in action. JUSTIN: Alright, so we're out on the road here in our '98 GT with the powerpack installed, and I just want you to listen to how sweet that exhaust sounds, man. I might wrap it up for you real quick. That sounds incredible! I've driven a lot of Mustangs, don't get me wrong I mean that's my job, and quite honestly, this is probably one of the better sounding setups I've heard in long time, man. It doesn't sound raspy at all I mean, you're getting rid of the cats, usually it's a rasp machine, but this thing sounds amazing, but enough with the sound already, this is a powerpack, so let's see how we feel when we actually get into it a little bit, shall we? Wind second out a little bit. The car definitely pulls a lot harder in the upper RPM range, and a lot of that can be attributed to how well we're making the car breathe now. I mean, we've got everything working for us, from the intake all the way back to the exhaust. This thing is definitely flowing a lot more air, and it shows whenever you get on the throttle. All in all, I think the powerpack is a success here in our '98 GT, we made a bunch of power, and that exhaust note says it all, man. Well that wraps it up, so be sure to check out some of our other Bolt-On Build-Ups for the 94-98 GT. We're going to work on the appearance a little bit, and make our car handle like it's on rails.

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.

Application. This Ford Racing Ring and Pinion Gear set will fit 11-14 Mustang GTs and 11-12 Shelby GT500s. 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

What's in the Box
  • (1) Ring gear
  • (1) Pinion gear
Installation Info
Tech Specs

Approximate RPM for 2011+ GT

Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 4628 6479        
2 3072 4301 5100% 6759    
3 2137 2991 3846 4701 5556 6410
4 1669 2337 3004 3672 4339 5007
5 1264 1770 2276 2782 3287 3793
6 822 1151 1479 1808 2137 2466

Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 5274          
2 2959 4142 5325 6509    
3 1923 2692 3462 4231 5000 5769
4 1445 2023 2601 3179 3757 4335
5 1096 1535 1973 2412 2850 3289
6 874 1223 1573 1922 2272 2621
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • GT - 10, 11, 12, 13, 14
  • GT500 - 10, 11, 12, 13, 14

People Who Bought This Item Also Bought

Most Helpful Reviews

FRPP 4.10


Helpful (2)

Great Choice

I purchased this gear after wanting more than the 3.73 gear I had previously and let me tell you it's everything I needed and more. Great fit, no noise, better gas mileage plus it accel great. I was worried ...

Read More
Helpful (1)

Overall Rating 4.9 out of 5 stars
Read All 48 Reviews

Customer Photos (3) Submit Your Photo

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5 Questions / 9 Answers

Ask a Question

Ford racing 4.10 bearing kit to be purchased w/gears? I have a 2011 Mustang GT with 18,000 miles on it. I have two questions: Do I need the installation and bearing kit or just the installation kit? Do I need the 8.8" rear gear pinion bearing or is it included in the installation and bearing kit?


Helpful (11)
  • No matter how many miles are on the car, it's always highly recommended to get the complete installation and bearing kit! It gives you added piece of mind in preventing a costly tear down in the future due to a bearing gone bad, which can ultimately cause more damage than just to the bearing. The 8.8" Rear Gear Pinion Bearing is not included in the installation and bearing kit so you will need to purchase that as well.


Show 2 more answers

will i need to tune the car if change gear ratio? My stang is bone stock I wanna Change the rear axle gears to 4:10 but will I need to tune the car


Helpful (6)
  • Your speedo would be way off without a tune.


Show 2 more answers

What all do I need when purchasing the 4.10 gears? Okay so I noticed the accessories options. What all do I need? Q: Do I need the installation and bearing kit? Q: Do I need the 8.8in Rear Gear Pinion Bearing? Q: Do I need the Traction-LOK Rebuild Kit w/ Carbon Discs (Ford Rebuild Kit)? Q: Also is there anything else I will be needing when installing the 4.10 gears?


Helpful (3)
  • yes you need the installation and bearing kit. yes you need the 8.8in rear gear pinion bearing no you do not need the traction lok rebuild kit. you will need differential oil I do not recommend the 4.10 gearset if you do alot of freeway driving get the 3.73. I have 4.10s and a 5speed automatic and it is fantastic on the dragstrip but a real bummer on the highway my engine is reving over 2300 rpm at 65mph unless you have a 6 speed transmission i would not recommend it for highway use.


When these gears are installed, do I need to purchase a new tune if my car already has one in it? Will this mess with my speedometer?


Helpful (0)
  • It is recommended to get a new tune after the installation of the Ford Performance 4.10 Gears (10-14 GT). You will need to re-calibrate your speedometer because the 4.10 gears are a significant amount larger than your stock gears.


Top Speed Decrease? Does the higher gear ratio lower your top speed ?


Helpful (0)
  • At some point you will run out of gear. You should be fine well past the what the speedo reads. What is your top speed goal?


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Customer Reviews (48) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Weekend

Installation Cost:$250-$500

  • Performance Gain 4.875 4.9
  • Fit 4.9375 4.9

  • 5/5

    Installation Time: Shop Install

    February 12, 2016

    Must Have!!!

    Wow it makes a difference!!! I would recommend to anyone looking to hugely increase the performance of their mustang! I first tried to install myself... That was a mistake! Took it into a shop once I couldn't get everything right.. Save yourself the trouble this one is definitely a shop install only.


    Year: 2010 Submodel: GT Fresno California

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    August 24, 2013

    Great Choice

    I purchased this gear after wanting more than the 3.73 gear I had previously and let me tell you it's everything I needed and more. Great fit, no noise, better gas mileage plus it accel great. I was worried a little bit about highway cruising but actually was a lot better than expected, sits at 2700rpms at 70 which is just fine. Gear pulls extremely hard, couldn't be happier.


    Year: 2010 Submodel: GT Bridgeport, AL, USA

    Helpful (1)

  • 5/5

    December 28, 2010

    pushes you in your seat

    I got these 4.10 gears about 5 years ago, i had 3.73 before and man what a difference it made, car launches faster and responds quicker, i a must have if you want to wake up your mustang. A mustang shop in Denver recommended a go with 4.10 super happy with the swap

    Andres Navarro

    Helpful (2)

  • 5/5

    February 20, 2010

    CANDI'S 03 GT 4:10 GEARS

    Had these gears installed--takes a little to get used to, previously had 373----feels like a totally new car! my previous best was 14.2, now 13.93 with more to come---you can see a video vs another gt (mine is the yellow one)


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    January 12, 2010


    just got them insalled today and can not believe the difference first gear might as well not be their because you spin but its amazing when you get them to hook up its like being in a new car a rocket!!! car has a slight hum but nothing bad American Muscle has been amazing with everything i have bought from them Thanks

    Brandon Johnson

    Helpful (2)

  • 5/5

    November 03, 2009

    Great for Manual!!

    First of alll- I would have been disappointed with anything less that 4.10's matched with my T45R. They stopped my car from just making a lot of noise and made it pull nicely in any gear. Performance and Traction- With my 275 Tires w/ Maximum Motorsports Lower and FRPP Upper control arms really breaking loose usually has to be intentional.... and trust me its nice to only go all "dukes of hazard" if you meant to do so. But for the serious drag racers reading this, some drag radials are recommended to really hook and clock some good 60's. I say that because vs. stock gears I didn't see any time off my 1/8mile(just a few more mph on the speedo). They may not unintentionally smoke the tiers on the street but they can be tricky to hook when every tenth is precious. MPG and RPM's- Well I don't drive a lot of highway and have actually scene and slight mpg boost on average. If I do go on the highway and do a few 4th gear pulls and go like 70-80mpg the whole time I can pretty much watch the fuel gauge drop to "E". But if you can cruise below 65 (2600+/- RPM) than its not too bad for local stuff.

    Brandon Fitzgerald

    Helpful (2)

  • 5/5

    September 03, 2009

    FRPP 4.10



    Helpful (2)

  • 5/5

    June 21, 2009

    4.10\'s for a \'03 Auto GT

    Had the 4.10\'s installed a few days ago for about 580 bucks... 450 for labor, 100 for bearings. A great mod for anyone, don\'t fear the gear. If you drive the speed limit you\'ll get the same MPG. MAKE SURE YOU PROPERLY BREAK IN YOUR GEARS! I\'m still in the break in period but I had to punch it a little merging on the highway and boy it was like a whole new car. When I drain the oil and swap the stock axles for the 28 spline mosers in about 400 miles I\'ll take pictures for ya\'ll. Great buy and a price that can\'t be beaten ANYWHERE!

    Eric U

    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    March 31, 2009


    Just had mine put on, big differnce when hitting the gas in first gear, u can break the tires with no clutch and when shifting to 2nd, break em again halfway through 2nd. Driving 40 mph roll and hitting the floor, you dont see a huge improvement, more from a dead stop... great purchase, glad i went with 4.10 over 3.73


    Helpful (1)

  • 5/5

    July 25, 2008


    Well, made, American Muscle is the best at timely delivery. Have a very competitive mechanic install gears.

    Sean Anderson

    Helpful (1)

  • 5/5

    October 14, 2007

    Best gear

    Do not use anything other then Ford Racing in your rear, easiest to install and no noise from your rear.

    Dave Gober

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    July 08, 2012

    Huge difference in acceleration

    I just installed these gears a few days ago and jumping from a 3.31 to a 4.10 was night and day difference. Living over in Germany, these gears are ideal for the back road twisties that I encounter on a daily basis. The car just wants to pull hard out of every turn. I highly recommend these gears to anyone out there. Don't let the 4.10's scare you away for those of you that do a lot of highway driving. I managed to hit the Autobahn and cruise at about 140mph without a problem all the way to the drag strip to then beat on it and then drive back home. Thanks American Muscle for another great product.


    Year: 2012 Submodel: GT Ramstein AB Germany

    Helpful (9)

  • 4/5

    December 06, 2010

    Had both 3.73 and 4.10's

    Well to start off, these will def. help your acceleration. Im thinking I will go back to the 3.73's because top end is totally lost and at 70 im running 2500rpm+ with these and mpg was def. noticeable with these 4.10's, but they are fun in the city...there just not that great on the highway...probably helps also if you have a 6spd and not a 5 like mine. Cheers!


    Helpful (8)

  • 5/5

    Installation Time: Afternoon

    August 10, 2012


    If your debating between 3.73 or 4.10 gears go with 4.10 END OF STORY!! Ive had 3.31's and 3.73's and now 4.10's and they are awesome, BUT.....only if you have a six speed and dont do alot of hwy miles, I have a six and sixtn gear feels like fourth did, gut they are awesome!!!!!!


    Year: 2012 Submodel: GT Auburndale , FL

    Helpful (5)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    April 27, 2012

    One of my BEST mod's

    If you have a 5.0 Mustang, you NEED these gears. The car has come alive! Acceleration is SO MUCH BETTER versus the wimpy 3.15 gears that the factory puts in. Get these gears and you will be very glad you did!!


    Year: 2012 Submodel: GT Dallas, TX

    Helpful (5)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    February 03, 2013

    Very noticeable gain

    Aside from the high installation cost, I think this is the best bang for your buck you can get. My low end acceleration has greatly improved. In fact, I generally start in 2nd gear because 1st disappears so quickly. My fuel economy hasn't suffered though and I'm at about 2500 rpms at 80mph in 6th.


    Year: 2013 Submodel: GT Charleston, SC, USA

    Helpful (4)

  • 5/5

    January 05, 2011


    I got these installed recently and love them! Car shifts right when I want it too in the city (Auto) and avg mpg is increasing in the city as well...I havent tested them out yet cuz im letting them break in but I can feel a difference in responsiveness!


    Helpful (3)

  • 5/5

    September 26, 2010

    From 3.27 to 4.10

    So, it was time for a rebuild of the rearend. I ordered the Ford Racing 4.10 gears and installed them, I'm here to say, it has made an incredible difference. The cruising rpms went up by 500 or so. A great, noisefree product. Well worth it.


    Helpful (3)

  • 5/5

    September 09, 2010

    you light up my life

    just had the 410 gears installed on Tuesday, and they are awesome, I had 331 gears with a automatic transmission, and couldn't stand how pathetic it was out of the hole, what a difference the 410 gears are, I am so happy I decided to do this. If your on the fence I would go for it!


    Helpful (3)

  • 5/5

    May 24, 2009

    From 3:27 to 3:73 & now 4:10

    Hey everyone I had purchased the 3:73 last year and was amazed from the difference. Well, here I am again and I had the 4:10 installed. Woooooowwww what a difference, The car moves like a rocket. One thing though I can\'t stay in first gear to long because after 2 seconds from the take off you would have too shift into 2nd. It\'s great I tell you, Just remember for every one gear you upgrade, it increases your rpm\'s by 200, but aslong as you have a stick, your 5th or 6th gear would bring your rpm\'s down to about 1400. This gear is truly a must have.


    Helpful (3)

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