USA Standard 4.10 Gears (99-04 GT)

USA Standard 4.10 Gears (99-04 GT)
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About USA Standard

Yukon Gears and Axles
Yukon Gear and Axle build quality parts that exceed expectation, it’s that simple! Yukons in-house engineering team utilizes state-of-the-art computer software to design expectational products that are manufactured in partnership with some of the world’s foremost leaders in OEM manufacturing. Only after rigorous testing and intense quality control inspection can it earn the name Yukon.
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OUR PRICE$149.99
Market Price $169.99You Save 12% ($20.00)
Item # 21616G99
(4.0/5)2 Reviews
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PRICE WITH OPTIONS $149.99
AmericanMuscle no longer carries the USA Standard 4.10 Gears (99-04 GT). Please check out 99-04 Mustang Gears for an updated selection.
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Product Features

  • USA Standard Gear
  • Manufactured from 8620 gear steel
  • 4.10 gear ratio
  • 8.8" ring gear diameter
  • Fits 1999-2004 GT, Bullitt, Mach 1, and SVT Cobra Mustangs
Wake Up Your Pony. Installing a set of steeper gears is a great way to get your Mustang into the power band quicker for improved low end torque and faster acceleration off the line. A set of USA Standard Gears will really wake up your Pony.

Better Than OEM Quality. Using state-of-of-the-art equipment and manufacturing techniques USA Standard Ring & Pinion sets are made to higher than OEM standards from high grade 8620 gear steel and are backed by a one year warranty.

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 USA Standard Gear Ring and Pinion Gear set will fit all 1999 to 2004 V8 Mustangs including the GT, Bullitt, Mach 1 and Cobra models. 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.

Approximate RPM for 1999-2004 GT


Manual
Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 4274 5983        
2 2529 3540 4552 5563 6575  
3 1669 2337 3004 3672 4339 5007
4 1264 1770 2276 2782 3287 3793
5 860 1204 1548 1891 2235 2579


Automatic
Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 3591 5027 6463      
2 1960 2744 3528 4311 5095 5879
3 1264 1770 2276 2782 3287 3793
4 885 1239 1593 1947 2301 2655

Installation Time:

(approx) 4 Hours

Difficulty Level:

Mechanical expertise or professional installation required.

What's in the box?

  • (1) Ring gear
  • (1) Pinion gear

Installation Guides:

What's in the box?

  • (1) Ring gear
  • (1) Pinion gear
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Fitment:
  • GT 99, 00, 01, 02, 03, 04
  • Cobra 99, 01, 03, 04
  • Mach 1 03, 04
  • Bullitt 01

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