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SR Performance Ring Gear and Pinion Kit - 3.73 Gears (86-93 GT)

SR Performance Ring Gear and Pinion Kit - 3.73 Gears (86-93 GT)
2 Reviews
Market Price $144.99 You Save 10% ($15.00)
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  • Item 397883G87

  • MPN# 397883G87

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    SR Performance Ring Gear and Pinion Kit - 3.73 Gears (86-93 GT)

    SR Performance Ring Gear and Pinion Kit - 3.73 Gears (86-93 GT)
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        Features & Details

        • Perfect for Street and Track Use
        • 3.73 Gear Ratio
        • 8.8" Ring Gear Diameter
        • Premium Grade 8620 Triple Alloy Steel
        • Corrosion Resistant Black Oxide Finish
        • Professional Installation Recommended
        • Fits 1987-1993 GT Mustang Models

        Product Resources

        Customer Photo (1) Customer Reviews (2) Ask the first Question
        Improves Performance. Increase the performance of your classic 1987-1993 GT Mustang by installing a set of 3.73 SR Performance Ring and Pinion Gears. By placing your Mustang into its power band quicker, these SR Performance Gears will improve low end grunt to get you up off the line much faster.

        3.73 Gear Ratio. 3.73 gears are a great combination of performance and fuel economy that are ideal for a daily-driven Mustangs that see a lot of highway time. If you put a lot of miles on your Pony and don't want to increase your cost at the pump, a 3.73 ratio will still give you the added acceleration you want without dramatically compromising fuel economy.

        Quality Construction. SR Performance manufactures their ring and pinion gears from forged 8620 triple alloy steel for superior strength. Featuring CNC cut and lapped gear teeth, SR Performance completes their gears in a black oxide finish for long lasting corrosion resistance.

        Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a new Speedometer Gear is an inexpensive way to fix this issue.

        Professional Installation Recommended. The installation of Ring and Pinon Gears can be a very intricate process, so mechanical experience is highly recommended. Follow the included instructions for best results.

        Application. This 3.73 SR Performance Ring and Pinion Gear set will fit all 1987-1993 GT Ford Mustangs equipped with a 8.8" rear end. 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: 1986 1987 1988 1989 1990 1991 1992 1993 Details

        What's in the Box
        • (1) Ring Gear
        • (1) Pinion Gear
        Installation Info
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        Customer Reviews (2) Write a Review

        Overall Rating 4.5

        out of 5 stars

        Installation Time:Afternoon

        • Performance Gain 4.5 4.5
        • Fit 5 5



        • 5/5

          Installation Time: Afternoon

          July 11, 2018

          SR 3:73 gears

          Super impressed with the shipping and handling! I like that I could track the order all the waybfrom the east coast! As for the product itself, fantastic! The gears made such a huge difference from my stock 3:27s they are well made products. I am happy so far!

          JaredP

          Year: 1991 Submodel: LX

          Helpful (1)

        • 4/5

          Installation Time: Afternoon

          February 06, 2018

          GREAT GEARS

          Received on time and very easy to install. I can tell a major difference in speed and get up.

          Nicholas

          Year: 1990 Submodel: LX

          Helpful (2)

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