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EXCEL from Richmond Ring and Pinion Gear Kit; 3.73 Gear Ratio (05-09 GT, GT500)

Item 21526G05
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$164.95

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      Product Information

      Features, Description, Specs & Installation

      Features

      • Superior Quality
      • 3.73:1 Gear Ratio
      • 8.8" Ring Gear Diameter
      • For Street or Track Use
      • Made in the USA
      • Fits 2005-2009 GT, Bullitt and Shelby GT500 Mustangs

      Description

      Improve Off The Line Acceleration. Does the idea of quicker acceleration and an increase in torque make your heart race? If so, you may want to consider upgrading your S197 Mustang to a set of Richmond Excel 3.73 Ring and Pinion Gears. Most 2005-2009 V8 Mustangs came factory equipped with 3.31 or 3.55 gears, which are ideal for the daily commuter who is concerned about fuel economy, but not for you the hard driving performance enthusiast. Installing a set of steeper gears in your Pony will place you in the power band quicker, this in turn will improve low end torque for faster off the line acceleration.

      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 3.73 ratio Richmond Excel Ring and Pinion Gear set will fit all 2005 to 2009 V8 Mustangs equipped with an 8.8" solid axle rear end, including the GT, Bullitt and Shelby GT500 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: 2005 2006 2007 2008 2009 Details

      EXCEL from Richmond F88373

      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 2005-2009 GT


      Manual
      Gear@25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1388854436998   
      2230132214141506159816902
      3151821262733334039484555
      4115016102070253129913451
      578210951408172120342347


      Automatic
      Gear@25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1370451856667   
      226343688474157956849 
      3177124803189389746065314
      4115016102070253129913451
      581711431470179721232450
      4.0

      Customer Reviews (85)

        Reviews of EXCEL from Richmond Drivetrain products have an average rating of 4 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • Bullitt - 08, 09
          • GT - 05, 06, 07, 08, 09
          • GT500 - 07, 08, 09

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