USA Standard 4.10 Gears (99-04 GT)

USA Standard 4.10 Gears (99-04 GT)
Click to Enlarge

About Yukon Gear

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 ...... READ MORE
OUR PRICE$149.99
Market Price $169.99You Save 12% ($20.00)
Item # 21616G99
Ships same business day

Accessories Options

Add Gear Install Kit

Accessories Options

Add Traction-LOK Rebuild Kit w/ Carbon Discs
PRICE WITH OPTIONS $149.99

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.

Approximate RPM for 1999-2004 GT Manual
Gear Speed
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


Approximate RPM for 1999-2004 GT Automatic
Gear Speed
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

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.

Installation Time:

(approx) 4 Hours

Difficulty Level:

Mechanical expertise or professional installation required.

Customer Submitted Installation Guides:

Differential Gears - Installation Instructions
checkmark
Fitment:
  • GT 99, 00, 01, 02, 03, 04
  • Cobra 99, 01, 03, 04
  • Mach 1 03, 04
  • Bullitt 01

Customer Reviews