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Yukon Gear 5.71 Gears (99-04 GT)

Market Price $355.03 You Save 9% ($32.28)
Our Price

$322.75

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  • Item 393216G99
  • MPN# YG F8.8-571

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Features & Details

  • 5.71 Gear Ratio
  • 8.8" Ring Gear Diameter
  • Superior Quality
  • Premium Grade 8620 Triple Alloy Steel
  • Intended for Track Use
  • Fits 1999-2004 GT Mustangs
Improve Performance. Does your 1999-2004 GT or Bullitt Mustang spend most of its live at the track adding a quarter mile at a time to its odometer? If so, you may want to upgrade to a set of 5.71 Yukon Gears. Featuring a much steeper ratio than your original factory installed gears these 5.71 Yukon Gears are ideally suited for the serious drag racer who is looking to increase low end torque for quicker off the line acceleration and faster elapsed times.

5.71 Gear Ratio. 5.71 Ratio Gears are the perfect choice for the serious drag racer who is looking for quicker acceleration and faster 60 foot times. However, it should be noted that you will see a noticeable decrease in fuel economy when compared to your original factory installed gears. 5.71 Ring and Pinion Gears are really intended for serious drag race applications and should not be used on street vehicles.

Quality Construction. Made from incredibly durable forged 8620 triple alloy steel for superior strength, Yukon backs their Ring and Pinion with a 1-year limited warranty. Yukon also takes full advantage of the most up to date state of the art technology in their design and manufacturing process. No matter how you look at it, this gear set is built to last.

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 5.71 Yukon Ring and Pinion Gear set will fit all 1999 to 2004 GT and Bullitt Ford Mustangs equipped with a 8.8" 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. 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: 1999 2000 2001 2002 2003 2004 Details

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

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Customer Reviews (1) Write a Review

Overall Rating 4.0

out of 5 stars

Installation Time:Afternoon

  • Performance Gain 5 5
  • Fit 5 5



  • 4/5

    Installation Time: Afternoon

    April 13, 2017

    yukon gear 5.71 gears

    works perfect! i highly advise using american muscle

    bontisb

    Year: 2001 Submodel: GT

    Helpful (0)

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