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Ford Racing 3.73 Gears (99-04 V6)

10 Reviews
Our Price

$179.99

  • Item #50351G99
  • MPN# M-4209-75373

  • Market Price $199.99
  • You Save 10% ($20.00)
In Stock Ships same business day.
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Product Videos
Features
  • Ford Racing quality
  • Strong forged construction
  • 3.73 Gear Ratio
  • 7.5" Ring Gear Diameter
  • For street or track use
  • Fits 1999-2004 V6 Mustangs
Description
Improve ET's And Low End Torque. Are you looking to get more low end grunt off the line and lower your 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 3.73 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 3.73 Ring and Pinion Gear set will fit all 1999 to 2004 V6 Mustang models equipped with a 7.5" rear end. A master bearing kit is recommended by most installers, especially on high mileage vehicles, 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.

Mustang Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Ring gear
  • (1) Pinion gear
Installation Info
Will it fit my Mustang?
  • V6 - 99, 00, 01, 02, 03, 04

Most Helpful Reviews Read All Reviews

Overall Rating 5/5 Write a Review
5/5
feel the power!

i have a 2000 v6 with sr preformance CAI, accel super coil pack, msd 8.5 wires, duel exhaust with H-pipe and 2 flowmaster 40. i just added these Ford Racing 3.73's and a possi... all i have to say is...

Read More
Helpful (3) (0)

5/5
nice gear for the street

love it and it did not hurt my gas miles, it moves a lot nicer out of the hole plentey of get up and go now.

Helpful (1) (0)

Videos

JUSTIN: Hey I'm Justin with AmericanMuscle.com and this is our PowerPack Bolt-On Build-Up for all 99-04 V6 Mustangs. Now, before we get started, let's address the elephant in the room. From the factory, View Full Transcript

Customer Photos

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Q & A (7 Questions, 6 Answers) Ask a Question

I have question about which gears are better for automatics 3.73 or 4.10? I've heard some people say that 4.10 gears are better for automatics and that 3.73 gears are more for manuals, what is the difference between the two gears and which one would be more beneficial for my automatic 1999 v6?

Blackwolf Year: 1999 Model: V6

Question Resolved
Good Question (1) (0)
  • Well it all depends on what your looking for... If your looking for acceleration go with 4.10 If its a daily driver I'd recommend the 3.73 Just because you'll have better MPG.

    Helpful (8) (0)

    Best Answer

    Trevor9 Year: 2004 Model: V6

    Top 1000 Contributor

Show 2 more answers

Speedometer recalibration Do i really need a Speedometer recalibration tool for 3.73's? Would a tune fix that issue or is there another solution to it?

Ziko Year: 2001 Model: V6

Question Resolved
Good Question (0) (0)
  • If you already have a custom tuner, you do not need the recalibration tool. The tuner can be updated for the rear gear swap to correct your speedometer! You would just need to request an updated tune via phone or the site. Hope this helps!

    Helpful (7) (0)

    LisaS Year: 1992 Model: GT

Will this lower my top speed? i have heard that this could lower my top speed is this true? if so are there any better gears to keep my top speed up but increase my acceleration?

Tommy02 Year: 2002 Model: V6

Question Resolved
Good Question (0) (0)
  • Tommy02, acceleration and speed are a direct negative correlation when it comes to your final drive gear. If you get higher ratio, relative top speed will go down no matter what. Likewise, if you lower the ratio, relative acceleration will go down no matter what. However, you really shouldn't be worried about your top speed because were talking only little difference and you'll probably never feel it unless you do 150mph on your way to work everyday. However, what you will feel is decrease in fuel economy with higher ratio in the long-term. Honestly, if you want to have some fun get it. Fuel economy and mustang doesn't belong in the same sentence. A good median is 3.55; that's what im running in mine.

    Helpful (1) (0)

    Best Answer

    Flyer01 Year: 2007 Model: GT

    Top 1000 Contributor

Show 1 more answer

Reviews (10) Write a Review

  • 5 Stars 1.0 100%
  • 4 Stars 0 0%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
5.0

out of 5 stars

10 Customers Recommend this Product

Installation Time:Weekend

Installation Cost:$250-$500

  • Performance Gain: 5 5/5
  • Fit: 4.7 4.7/5
  • Bang For Your Buck: 4.7 4.7/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    March 29, 2013

    feel the power!

    i have a 2000 v6 with sr preformance CAI, accel super coil pack, msd 8.5 wires, duel exhaust with H-pipe and 2 flowmaster 40. i just added these Ford Racing 3.73's and a possi... all i have to say is... WOW!!!!! my car was already getting ok power but with these 3.73 and the possi togeather it really brings my poney to life! im able to launch better, get off the line faster, and recover from the turns alot better, i get better traction from both wheels, and it really throwes me back in my seat now :) it dose not feel like im driving a v6 no more! and gas is ok on it too. not a big difference. im so glad i got these 3.73 it is well worth the money!!!!! thank you AM!!!!

    ElLoco

    Year: 2000 Model: V6 Driving Style: Street / Strip 'Stangs I have owned: 3 San Antonio, TX, USA

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    February 21, 2014

    much more fun to drive

    With these 373 gears you can feel the difference while driving down the road as for being my daily driver I would recommend this product to anyone who is looking for a gear swap

    millo925

    Year: 2003 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Stockton, CA, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 23, 2013

    Great launch

    Along with a cold air intake and AM msd performance coil pack and 8.5 mm wires this product has mad a huge difference in my v6 stang. Faster launches and a lot more low end power. Not the easiest install for beginners but with proper help this is a great mod for any v6. Thanks AM

    00v6mustang

    Year: 2000 Model: V6 Driving Style: Street / Strip 'Stangs I have owned: 2 Louisville, KY, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    July 18, 2012

    nice gear for the street

    love it and it did not hurt my gas miles, it moves a lot nicer out of the hole plentey of get up and go now.

    dullblade12

    Year: 2001 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 rittman ohio

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    July 26, 2013

    WOW!!!!!!

    All I have to say is wow. The gears really woke my car up out of the hole. No longer do I launch and feel a pause for the car to catch up. It has a lot more even pull and once I combined this with the tune that Bama was quick to give me I am very pleased and no its too much for my tires ha burns through all gears.

    Eric21

    Year: 2004 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Plainview, TX

    Helpful (1) (1)

  • 5/5 Yes, I recommend this product

    November 23, 2013

    amazing acceleration

    This product shipped to me wednesday I installed it thursday. I test drove to see the gains and what a difference it made.

    zach42

    Year: 2000 Model: V6 Driving Style: Street / Strip 'Stangs I have owned: 1 Maine, USA

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    November 08, 2012

    3.73 Gear up grade

    the overall performance is outstanding. It comes out of the hole so much better than with the stock gears. This is with a 2000 Mustang v6 automatic. i have done so many things to this automobile, and ninth percent of all the parts have been purchased from american muscle, which I am completly satified with. Thank you for all your help and assistance, for I could have not compleated this task without you.

    stangone

    Year: 2000 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Hialeah Florida

    Helpful (1) (4)

  • 5/5 Yes, I recommend this product

    February 21, 2014

    NICE INVESTMENT

    Good price makes my car feel like a sleeper and faster than the regular v6

    Bishop600

    Year: 2002 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 Texas, USA

    Helpful (0) (0)

  • 5/5 Yes, I recommend this product

    August 15, 2013

    Just the right gear

    Went from stock to 4.10 to 3.73. I had the 3.73 a long time ago and wanted to see how the 4.10 was. Loved the quickness but the revs were way too much. I'd need 7 speed to handle that gear. 3.73 is great, gets me moving. Anyone want to buy a 4.10 that was in for about 5 months?

    welxx

    Year: 2000 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Gilbert, AZ, USA

    Helpful (0) (0)

  • 5/5 Yes, I recommend this product

    May 20, 2013

    Good product

    I'd got these along with an Auburn limited slip differential and they've really given the car an excellent kick both off the line and overall. I've just got them installed in the car and have gone through with the break-in period, so I can't attest to the long term durability of the gears, but they're Ford Racing and are quality products. No gear whine so far either, but i'm also running Ford Racing friction modifier and Royal Purple diff fluid.

    RyanCoke

    Year: 1999 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Winnipeg, MB

    Helpful (0) (0)

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