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

Market Price $192.99 You Save 9% ($18.00)
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  • Item 24002
  • MPN# M-4209-88410

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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, 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

    CA Residents: Warning: California's Proposition 65

    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

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    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)
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    Customer Reviews (80) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Performance Gain 5 5
    • Fit 4.823529 4.8

    • 5/5

      Installation Time: Full Day

      September 19, 2018

      High Ratings for a Reason

      It was time to rebuild my rear-end. Have 06 FT Manual, and bearings were making noise. Decided to replace bearings and upgrade gears (3.55). Debated between 3.73 vs 4.10....ready the reviews and decided to go with 4.10. Car rides whine...and lots of pull. I'm still in the break-in period (shop recommends 500 miles)...but can feel the difference. No regrets...can't wait to stomp on the way I will make it 500 miles. However, I will do several heat cycles of warm and cool down to break in gears.


      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Full Day

      August 29, 2018

      3.27 to 4.10 posi WOW!

      My police interceptor automatic now can chirp going into 2nd. Best bang for the buck! Only turns 2000rpm @ 55mph. Sold my boat because of three open heart surgeries and used some of the money for this mod. Well worth it.


      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      August 14, 2018


      4.10. is the only way to go if you have a 6 speed car. Don’t even think about a 3.73. I went from a 3.31 to the 4.10. It’s a whole new animal. You will need wider tires, to hold the road. This is the best modification for the money. The only way to feel this big of a change in your car would be to super charge it. I recommend running the backlash between.013in to .015in. It’s a little higher then spec, but this will prevent some gear noise at low speeds.


      Year: 2014 Submodel: GT500

      Helpful (1)

    • 5/5

      November 09, 2017

      Great mod

      The best money I have spent so far. With a cold air intake and a tune the 4:10 gear install made it all come together. I can keep rpm’s in my power band even during normal driving which makes the car a blast to drive. Only lost 2 mpg on highway. A win win mod for me!


      Year: 2006 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Afternoon

      November 02, 2017

      worth every penny

      was on the fence between 3.73 and 4.10s for my n/a 03 mustang gt 5 speed. i am so glad I went 4.10s. cars 3rd gear is amazing and 4th feels like my old 3rd gear. at 70 mph it sits around 2500rpm in 5th. car launches like a rocket and is still absolutely fine on the highway. easy install, the ring and pinion are machined well. installed myself (on a lift) took about 3 hours. only reason for 4 out of 5 stars is after checking preload and backlash 3 times the gears are a little bit noisier than original. (barely noticeable) no passengers have noticed but I do. slight slight whine. took the cover off and checked preload and backlash once more time after about 100miles, no change still dead on with a beautiful wear pattern. these gears just make a tiny bit of noise compared to original.


      Year: 2003 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Full Day

      September 26, 2017




      Year: 2005 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      August 16, 2017


      These gears made all the difference my 60 ft times improved about .5 sec


      Year: 2002 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Weekend

      July 11, 2017

      A difference you can feel.

      It took my father and I an entire weekend to install them (I was also installing new axle bearings and new LOK discs), but after it was all said and done, the performance gain was nothing short of incredible. At 45mph with overdrive off, I'm rolling at 2300k RPMs and ready to take off whenever I want. It's perfect for cruising the streets.


      Year: 2000 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      April 11, 2016

      Gear 4.10

      I have a 1999 GT and those gears is a must on a automatic mustang, I did not get s tune yet if calibrate the speedo, But it should be the best mod u ever did , do this first what are you waiting for


      Year: 1999 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      December 22, 2015


      Cant be happier with this product. Love the way that they perform in the car!


      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      October 13, 2012

      FRPP 4.10 GEARS

      Much quicker acceleration. I had a shop install these, and they do have a little whine upon deceleration from about 42-58 mph. Nothing terrible, and this speed shop has done hundreds if not thousands of these gear swaps. Overall very happy!


      Year: 2008 Submodel: GT Munroe Falls, OH

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      October 10, 2012

      Major acceleration increase!

      I was hesitating whether to get the 3.73's or 4.10's. My car's NA so I went with the steeper 4.10's. Acceleration and torque feel has been increased in all gears. I also do a lot of city driving combined somewhat highway and my gas mileage is excellent, as long as I keep my foot light as a feather!!


      Year: 2006 Submodel: GT Guam

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      August 12, 2012

      Ford Racing 4.10 gears

      I had to remove my Motive 3.90's because they were so freakin' loud that I couldn't stand them. The Motive gears were in the car for about seven months and the whine was incredibly annoying. I've got the M90 Roushcharger and CAI on my '08 GT convertible and the supercharger whine is loud... but I had to get rid of the Motive gears. The Ford Racing 4.10's are almost silent. LOVE THEM. Got to make sure that you're going real straight when the car shifts from 1st to 2nd with the pedal on the floor otherwise the rear tries to pass the front. LOVE IT.


      Year: 2008 Submodel: GT Cecilia, KY 42724, USA

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      March 27, 2012

      410's are the way to go!

      Alot of people ask "Why did you go with such a tall gear? Do you lose first gear?" No you do not lose first gear, and what i wanted out of the gear was 3rd and 4rth gear on the freeways. WHAT A DIFFERENCE! I love how much harder it pulls on the highway now. even 5th suprised me. Worth every penny.


      Year: 2005 Submodel: GT Yakima, WA

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      February 05, 2012

      Love 'em

      Should be the first mod for any mustang. Best bang for the buck, and always top notch quality from FRPP.


      Year: 1998 Submodel: Cobra Maryland

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      January 28, 2012

      Excellent upgrade

      I purchased this for my son for Christmas. He has a 2006 GT. We installed them in early January on a unusual warm day. Took about 2 1/2 hours and man what a difference. His GT launches like crazy ! A must for a easy upgrade ! American Muscle Rocks !


      Year: 2006 Submodel: GT NY

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      January 27, 2012

      FRPP 4.10 Gears Rock

      Ford Racing 4.10 gears are an improvement in any S197 Mustang. I've had them with the stock Tremec TR-3650 transmission and the Tremec TR-6060 that comes standard in the GT500. Don't fear the gear. Overall performance really wakes up with this gearset. MPG is hardly affected due to the .68 fifth gear in the TR-3650 resulting in a final drive ratio of 2.79. Sixth gear in the 2007-2008 GT500 TR-6060 is .63 resulting in a final drive ratio of 2.58 while the 2009+ GT500 has a .5 sixth gear giving a final drive ratio of 2.05. In most cases switching to 4.10 gears increases city MPG while highway is hardly affected due to Fords well thought out transmission ratios. This is the gear that should of been standard from the factory, it will not dissapoint.


      Year: 2008 Submodel: GT Marysville, WA

      Helpful (4)

    • 5/5

      August 04, 2011

      Ford Racing 4.10 Gears Rock

      I'm on deck with all of you. I just had the new gears installed, and I'm so glad I didn't "Fear the Gear". This ratio is so sweet for stop and go driving, parking lots, steep driveways,etc. If I lived in flat country, probably 3.73 would be a good choice. But not here in BC. No gear whine, even with urethane diff. mount bushings. bushings. This is IRS in a 2001 Cobra.

      Derek H. from Kelowna

      Year: 2001 Submodel: Cobra

      Helpful (4)

    • 5/5

      June 01, 2011

      ford racing 4.10 gears

      the ford racing 4.10 gears were a great choice for my 04 GT with the tremec 3650 5spd. they are a quality part from the O.E.M. and fit and work as such. the gears should be a first on the list to change from a stock GT, (if mine was an automatic I would have got a 3.90 gear,)they are a good choice for my daily driver and were worth the install, I used the motion gear install& bearing kit and found it helped make the job go well.

      steven brown

      Year: 2004 Submodel: GT

      Helpful (4)

    • 5/5

      March 29, 2011

      Great Gears

      Took gears and install kit to my shop and $450 later in labor (not bad) I'm banging gears!! My only regret is not going 4.30s but 4.10s will do!!


      Year: 1999 Submodel: Cobra

      Helpful (4)

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