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EXCEL from Richmond Ring and Pinion Gear Kit; 4.10 Gear Ratio (86-93 GT)

Item 21528G87
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$198.76

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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 1986-1993 GT, 5.0 LX and SVT Cobra

      Description

      Improve Off The Line Acceleration. Increase the low end torque and acceleration of your classic 5.0L Mustang by upgrading to a set of Richmond Excel 4.10 Ring and Pinion Gears. These Excel 4.10 Gears have a much higher ratio when compared to your 1986-1993 Mustangs factory installed 3.08 or 3.27 gears. This higher gear ratio will help get your Mustang into its power band faster and therefore off the line quicker. Richmond Excel 4.10 Ring and Pinion Gears are perfect for those Fox Body owners that want more get up and go out of their Pony.

      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 new Speedometer Gear (sold separately).

      Application. This 4.10 ratio Richmond Excel Ring and Pinion Gear set will fit all 1986 to 1993 V8 Mustangs equipped with an 8.8" solid axle rear end, including the GT, 5.0 LX, 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:

      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 1986-1993 GT


      Manual
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 4261 5965        
      2 2516 3523 4529 5535 6542  
      3 1682 2354 3027 3700 4372 5045
      4 1264 1770 2276 2782 3287 3793
      5 847 1186 1525 1864 2203 2541


      Automatic
      Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1 3034 4248 5462 6676    
      2 1854 2596 3338 4080 4821 5563
      3 1264 1770 2276 2782 3287 3793
      4 843 1180 1517 1854 2192 2529
      4.0

      Customer Reviews (89)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • GT - 87, 88, 89, 90, 91, 92, 93
        • LX - 87, 88, 89, 90, 91, 92, 93
        • Other - 86

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