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Richmond Ring and Pinion Gear Kit; 3.55 Gear Ratio (99-04 Mustang GT)Find parts that fit my vehicle

Item 66502G99
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26 Reviews
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$392.69

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      Product Information

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

      Features & Specs

      • Exceptional Quality
      • Handle Extreme Torque Applications
      • First-Run, Never Recycled Materials
      • 3.55 Gear Ratio
      • 8.8" Ring Gear Diameter
      • 2-Year / 100,000 Mile Warranty
      • Fits 1999-2004 GT Mustangs

      Description

      Better Acceleration. If you're looking to improve your rear gear ratio, but don't want to go too steep or lose much gas mileage, then these 3.55 Richmond Gears are perfect for your application. Designed for 8.8" rears found in 1999-2004 GT Mustangs, this ratio will get your Pony into the power band faster and deliver better acceleration.

      Superior Quality. Manufactured right in the United States, Richmond Gear uses only the highest standards to produce the highest quality gears in the industry. Inspected and scrutinized to deliver gears with acceptable tolerances, durability and fit, Richmond ensures only the best in machining, finishing and heat treating of their drivetrain components.

      Recommended Upgrade. When changing the gear ratio of your Mustang's rear differential, the calibration of your speedometer will no longer be accurate and will display the wrong speed. However, you can easily fix this annoying issue with a Tuner or Recalibration Tool (sold separately).

      Installation Notes. An Installation and Bearing Kit is highly recommended by most installers, especially on high mileage Mustangs. Please see ordering options above.

      Warranty. Richmond Gears is so confident in the high quality of their ring and pinions that they are backed by a 2-Year / 100,000 Mile No-Nonsense Warranty.

      Application. These Richmond 3.55 Ring and Pinion Gears will fit all 1999 to 2004 GT Mustangs equipped with an 8.8" rear end.

      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 your gears are installed. See ordering options above. Note, a 28-spline S-Spring will be required for 28-spline Mustangs (sold separately) if you opt for the Trac-Lok rebuild.

      Fitment:

      Details

      Richmond 66502G99

      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

      4.9

      Customer Reviews (26)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

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

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