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Yukon Gear 4.30 Gears (99-04 GT)

Market Price $330.95 You Save 9% ($30.09)
Our Price

$300.86

FREE Shipping
  • Item 393214G99
  • MPN# YG F8.8-430

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • 4.30 Gear Ratio
  • 8.8" Ring Gear Diameter
  • Superior Quality
  • Premium Grade 8620 Triple Alloy Steel
  • Ideal for Street and Track Use
  • Fits 1999-2004 GT and Bullitt Mustangs
Improve Performance. Add the extra punch you need to get off the line quicker by upgrading to a set of 4.30 Yukon Gears. A steeper set of rear ring and pinion gears will place your V8 Pony into its power band much faster for quicker acceleration and a noticeable increase in low end grunt. These 4.30 Yukon Gears are ideal for both street and track applications.

4.30 Gear Ratio. 4.30 Ring and Pinion Gears are a great choice for increasing the performance of your Mustang. However, it should be noted that you will see a decrease in fuel economy when compared to your original factory installed gears. So, if you want better acceleration and don't mind a slight increase at the pump, a set of 4.30 ratio Gears will give you the added performance you want without breaking the bank.

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 4.30 Yukon Ring and Pinion Gear set will fit all 1999 to 2004 GT 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

Customer Photos

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Full Day

  • Performance Gain 5 5
  • Fit 5 5



  • 5/5

    Installation Time: Full Day

    November 15, 2016

    Catch me if you can!! Haha

    Best gears out there Yukon makes the best gears Will make any ford rear end fly this should be anyones 1st upgrade Want to go fast get this and u will beating cars all day

    JULIAN

    Year: 1989 Submodel: GT

    Helpful (1)

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