Ford Performance Mustang 4.10 Gears and Install Kit 100574 (10-14 V8; 11-14 V6)

Ford Performance 4.10 Gears and Install Kit (10-14 V8; 11-14 V6)

36 Reviews 7 Answers

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$279.99 (kit)

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Item 100574

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Features & Details

Money Saving Combo Kit
Ford Racing 4.10 Gears - 8.8"
Ford 8.8in Rear Gear Pinion Bearing
Motive 8.8" Rear End Installation and Bearing Kit
1 Bottle of Ford Racing Friction Modifier
2 Quarts of Royal Purple Max Gear 75w140 Gear Oil
Fits 2005-2014 V8 and 2011-2014 V6 Mustangs with 8.8" Solid Rear Axle

Product Resources

Customer Photos (2) Customer Reviews (36) Questions (7) & Answers (7)

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. This Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

Complete Kit. This Ford Racing Gear and Installation Kit comes complete with all the components needed to swap out your ring and pinion gear. It includes Ring gear, Pinion gear, inner rear gear pinion bearing, 1 bottle of Friction Modifier, 2 bottles of 75w140 Gear Oil, gaskets, seals, shims, bearings and all the required hardware.

Legendary Ford Racing Quality. When you're adding performance parts to your Pony, you can't go wrong by installing parts from the folks that know it best. Ford Racing's legendary quality ensures years of hassle-free use.

Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Ford Racing Speedometer Recalibration Tool or a Bama SF4/X4 Power Flash Tuner is a quick and easy way to fix this issue.

Application. This Ford Racing 4.10 Rear Gear and Installation Kit is designed for use with 8.8in solid rear axle equipped Mustangs, including the 2005-2014 GT, Bullitt, BOSS, Shelby GT500 and 2011-2014 V6 models.

Application Note: Does not fit 2013 Boss or 2013-2014 Shelby GT500 Mustangs with axle codes S-215-D and S-219-D.

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

MPN# 100574

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

What's in the Box

(1) Ring gear
(1) Pinion gear
(1) Rear Gear Pinion Bearing
(1) 3.8 fluid oz bottle of Friction Modifier
(2) one quart bottle of Royal Purple Max Gear 75w140 Gear Oil
Front & Rear Pinion Bearing
Pinion Seal
Carrier Bearings
Carrier Shims
Differential Bearings
Crush Sleeve
Pinion Nut
Cover Gasket
Ring Gear Bolts
Brush
Gear Marking Compound
Loctite

Installation Info

Installation Time: (approx) a Day

Difficulty Level:Mechanical expertise or professional installation required.

Installation Guides:

Manufacturer:
Differential Gears - Installation Instructions

Tech Specs

Tech Guides:

Will it fit my Mustang?

Boss 302 - 12, 13
GT - 10, 11, 12, 13, 14
GT500 - 10, 11, 12, 13, 14
V6 - 11, 12, 13, 14

Does not fit 2013 Boss or 2013-2014 Shelby GT500 Mustangs with axle codes S-215-D and S-219-D.

Questions & Answers (7)

5 Top Rated Questions

Does this kit come with everything I need for the swap? Besides not having enough replacement gear fluid.

The Ford Performance 4.10 Gears and Install Kit will come with everything you need to do the swap yes.

Helpful (2)

What bearings does this kit replace?

The Ford Performance 4.10 Gears and Install Kit will include Front & Rear Pinion Bearings, Carrier Bearings, and Differential Bearings.

Helpful (1)

Is this good for auto too?

The Ford Performance 4.10 Gears and Install Kit can be used on both auto and manual cars. Gear ratio selection would come down to the use of the car, tire size, and amount of time spent on the highway in the car. Please contact our Customer Service department so we may best assist you with selecting the best gear ratio for you.

Helpful (0)

Do i need a tune with these 4.10 gears? (2012 v6 manual)

A tune will not be required with the Ford Performance 4.10 Gears and Install Kit (10-14 V8; 11-14 V6), however your speedometer will be off. With a custom tune this will correct the speedometer.

Helpful (0)

My 2013 gt is sprayed. I broke my driveshaft and ruined the rear end on the drag strip last night. Will these gears be good for 1/8th mile and 1/4th with nitrous.

The Ford Performance 4.10 Gears and Install Kit is definitely a good upgrade over the stock gears. For what you are using these with I would recommend the Ford Performance Traction - LOK Rebuild Kit w/ Carbon Discs Item #50092(http://www.americanmuscle.com/ford-88-traclok-kit.html) to go along with this kit to help make it stronger.

Helpful (0)

Not finding an answer? Ask your question! Post Your Question

2 More Questions

What RPM are you running @65mph on a 2014 V6? I cannot find any information anywhere. 1 answer

HI, To calculate your rpm we will need more info about your build to help you with your question about these Ford Performance 4.10 Gears and Install Kit please feel free to give us a call or send us a email so we can help you with your question. http://www.americanmuscle.com/contact.html

Helpful (0)

I plan on adding NO2 in time. Will these gears be to short for that? 1 answer

most likely yes, especially if you're going turbo or supercharged. that is of course; unless the car is a strip car only.

Helpful (0)

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Customer Reviews (36) Write a Review

Overall Rating

4.9

out of 5 stars

Installation Time:Weekend

Installation Cost:$250-$500

Performance Gain 4.828571 4.8
Fit 4.971428 5.0

no one in the world ever gets what they want, and that is beautiful

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5/5

Installation Time: Afternoon

October 31, 2018

4.10 Gear Kit

Just a quick reference on this kit. I have a 2013 v6 automatic. I am adding some nice mods slowly for power and torque. These gears are the first thing after you CAI you should purchase. I had a local gear shop install this kit along with a BRAND NEW Traction Lock with Carbon Discs. Not the rebuild kit. Took the shop about 4 hours at a cost of $450. They have strict break in they recommend which is 1,000 miles. After 700 miles they recommend bringing it back in to replace the new Royal Purple with new. So I am going to lay low on them as prescribed. Yet I can tell that right off the top you can feel the difference just moderately driving it. Very happy with this changeout. Have yours installed right. This is not an easy job and certainly not for an amateur to try.

Craig

Year: 2013 Submodel: V6

Helpful (2) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

November 29, 2017

4.10 Gears

Very responsive since installing this set! I can now "toss" my car around like it lost 1,000 pounds. :)

JohnB

Year: 2011 Submodel: GT

Helpful (4) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

November 24, 2017

4.10 install kit

Made a tremendous difference in performance. Now it will turn the tires!

PEM

Year: 2013 Submodel: V6

Helpful (5) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

November 16, 2017

Just what I needed

Included everything for my new gears to be installed

MarkP

Year: 2013 Submodel: GT

Helpful (5) Thanks for your input!
- Performance Gain 4
  4
- Fit 5
  5
5/5

Installation Time: Afternoon

November 13, 2017

Gears

These gears holding up extremely well, such a huge difference in performance, installed my Mustang Magic on Long Island, no whine or chatter... highly recommend!

CCC

Year: 2011 Submodel: GT

Helpful (4) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Full Day

July 27, 2017

2013 Mustang GT

Love these gears.. Took the stock out and had a friend install these 4:10.. Matched up perfectly with the 6 speed manual.. . Runs 2200 rpm at 80mph..

Stang

Year: 2013 Submodel: GT

Helpful (11) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

July 07, 2017

20 inch wheels/this gear,perfect street ratio

These gears put the power band of my supercharger right in time. I personally think these are perfect, not too steep, great at the strip and still cruise 75mph at under 3000rpm

DavidE

Year: 2013 Submodel: GT

Helpful (6) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

June 14, 2017

Best mod yet

If you haven't done this already, buy it now. This is my favorite purchase I have made yet, but make sure you get a tune to.

Drey

Year: 2013 Submodel: V6

Helpful (6) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5
March 26, 2017

Love the 4.10s

Great product, had everything I needed. Only turning 2k at 60mph. Should have come from factory this way

RobertW

Year: 2012 Submodel: GT

Helpful (7) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

March 13, 2017

Good bump in acceleration

Had these installed for about $400 very slight hum above 60 mph. In a 6 speed card you're looking at about 3000 rpm to go 80 mph. Good quality kit and a significant boost to acceleration. You need to plan for some rear suspension upgrades to help with traction.

Mcgee19d

Year: 2011 Submodel: GT

Helpful (8) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Afternoon

March 10, 2017

4 10

This kit comes with everything u need...said by my mechanic. ..I really like the gears. Pushed my RPM's up about 500..rides good on highway..car feels like it being pushed from the rear..very exciting. .much quicker...very happy

Martymar

Year: 2010 Submodel: GT

Helpful (6) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Weekend

March 01, 2017

Great choice

I was on the fence between the 4.10 and the 3.73 glad i chose the 4.10 gas millage changed by a 0.4 mile difference took a while to install with no rear end experience but the PDF guide on American Muscle had all the information i needed for a good install. would not recommend installing on jack stands because getting the correct preload on the pinion nut is difficult with no clearance for leverage. but overall the performance gains are totally worth the hassle!

FakeName

Year: 2014 Submodel: V6

Helpful (9) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Full Day

February 20, 2017

4.10 gears for V6

The kit was complete. Easy work for my local shop. Night and day difference in performance - now it feels like a real pony car.

PEM

Year: 2013 Submodel: V6

Helpful (6) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

February 19, 2017

Great gears

Really woke the car up. Super fun to drive now on and off highway. I have a 6 speed. First gear is not totally unusable but very close. Only 200 miles on them so still breaking them in. No noise so far. Shop install.

Madmax

Year: 2012 Submodel: GT

Helpful (6) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Afternoon

January 28, 2017

4.10 gears

Amazing. Had a friend install and I loved them. Stock was 2.73. Huge difference

MustangMike

Year: 2013 Submodel: V6

Helpful (4) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5

Installation Time: Shop Install

Installation Cost: $250-$500

December 10, 2016

Great Product

I chose to purchase the entire kit instead of the gears alone and it was a great decision. I combined it with a new toque converter and there is definitely a difference. I would greatly recommend it for anyone that wants to that 1/4mile tome down.

Monster3v

Year: 2010 Submodel: GT

Helpful (7) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
5/5
July 27, 2016

410's

There great with the 6 speed manual still breaking them in though I used to spend a lot of time in 3rd and 4th but now in 4th and 5th while in town freeway I'll get into 6th install cast me about 700 bucks wasn't bad! There not noisy like some reviews I have read

tgun1

Year: 2011 Submodel: GT

Helpful (7) Thanks for your input!
5/5

Installation Time: Weekend

June 29, 2016

2015 5.0 COYOTE GT/CS

Switch from a 3.31 rear to the 4.10 the 4.10 pulls harder down low as expected. before when launching the car from a dig on the street the car would lag till I hit 3k where the power comes on, now it goes right into the power and the lag is almost gone. the install kit comes with a new pinion bearing so you will not need to order a separate one, and the two quarts will not completely fill the axle 4 oz. short. definitely would by again.

Travis

Year: 2012 Submodel: GT

Helpful (9) Thanks for your input!
- Performance Gain 4
  4
- Fit 5
  5
- Bang for your Buck 5
  5
3/5

Installation Time: Afternoon

June 28, 2016

'11 Automatic GT 4.10s

These 4.10s give you a great feel out of the hole if you can hook up. The quality is good(no noise), and would recommend a shop install. If you have an automatic 11-14 GT though.. These aren't that great for us. Yes, you get the sensation and feel of a faster accelerating car, but the fact is your ETs stay the same or suffer with these gears with how short the auto 1st gear is(why AM suggested these is beyond me). Went to a drive train specialist who works on Fords almost exclusively and he recommended the 3.31s/higher stall torque converter for my auto and my ETs were slightly better with just the 3.31 swap alone, and assume they will improve drastically with a TC.

Kris

Year: 2011 Submodel: GT

Helpful (8) Thanks for your input!
- Performance Gain 2
  2
- Fit 5
  5
- Bang for your Buck 3
  3
5/5

Installation Time: Full Day

June 17, 2016

Consistent 1.5sec 60 foot times at the track.

Perfect gears for my 6 speed gear box SC Mustang and didn't affect the top end performance either, except it gets there allot quicker. Very street-able gear that's fun to drive anywhere. The best bang for the buck!

SleeperRoush

Year: 2013 Submodel: Other

Helpful (8) Thanks for your input!
- Performance Gain 5
  5
- Fit 5
  5
- Bang for your Buck 5
  5

Ford Performance 4.10 Gears and Install Kit (10-14 V8; 11-14 V6)

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