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EXCEL from Richmond Ring and Pinion Gear Kit; 4.10 Gear Ratio (99-04 GT)

Item 21528G99
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Superior Quality
      • 4.10:1 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Made in the USA
      • Fits 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs

      Description

      Improve Off The Line Acceleration. Searching for a way to increase the low end torque and improve the acceleration of your 4.6L V8 New Edge Mustang? Of course you are, that's why you should upgraded to a set of Richmond Excel 4.10 Ring and Pinion Gears. Excel's 4.10 Gears have a much higher ratio when compared to your 1999-2004 Mustangs factory installed 3.27 gears. This steeper gear ratio will place your Pony into its power band faster and therefore off the line quicker. Richmond Excel 4.10 Ring and Pinion Gears are perfect for those Mustang owners who want more get up and go.

      Superior Quality. Richmond proudly manufactures their Ring and Pinion Gear Sets right here in the USA. Using state-of-the-art manufacturing processes and extensive quality control testing, Richmond produces a superior quality Ring and Pinion Gear Set at an excellent price. Richmond is so confident in the quality of their products that they back them with a 6 month, 50,000 mile no-nonsense warranty.

      Recommended Upgrade. Please note that when changing the gear ratio of your Mustangs rear differential that the calibration of your speedometer will no longer be correct and will display the wrong speed. However, you can easily fix this annoying issue with a Ford Racing Speedometer Recalibration Tool (sold separately).

      Application. This 4.10 ratio Richmond Excel Ring and Pinion Gear set will fit all 1999 to 2004 V8 Mustangs equipped with an 8.8" rear end, including the GT, Bullitt, Mach 1 and SVT 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. 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

      EXCEL from Richmond F88410

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Ring gear
      • (1) Pinion gear

      Tech Specs

      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
      4.0

      Customer Reviews (89)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • Bullitt - 01
        • GT - 99, 00, 01, 02, 03, 04

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