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EXCEL from Richmond Ring and Pinion Gear Kit; 3.73 Gear Ratio (86-93 Mustang GT)Find parts that fit my vehicle

Item 21526G87
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93 Reviews
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$239.99

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      Product Information

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

      Features & Specs

      • Superior Quality
      • 3.73:1 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. Get your classic Fox Body Mustang up and moving by installing a set of Richmond Excel 3.73 Ring and Pinion Gears. Richmond's Excel 3.73 Gears have a higher ratio when compared to the gears installed by Ford at the factory. This steeper ratio is designed to get your Mustang into its power band quicker which will improve low end torque for faster acceleration. A set of 3.73 gears are perfect for use in street, track and drag applications.

      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 3.73 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 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

      4.0

      Customer Reviews (93)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      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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