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1979-1993 Fox Body Mustang Speedometer Gear & Speed Correction

Is your 1979-93 Mustang speedometer off? Repair it with a brand new speed correction speedometer gear. Installing rear end gears or switching to a bigger tire usually throws your Fox Body speedometer off. Repair it with Late Model Restoration's 6, 7, 17, 18, 19, 20, 21, and 23 tooth speedometer gears. Don't forget your speedometer cables, retaining clips, and sensors to get your speed gauges working correctly again.

These parts fit: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, and 1993 Fox Body Mustang.

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.

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If you are needing help in installing your new speedometer gear check out our install article below!

Mustang Speedometer Gear Install

About the Video

Mustang Speedometer Gear Calculator from LMR.com

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Published on 2013-08-06
Tired of getting a different answer everytime you ask what speedometer gear you need in your Stang? Well we have created the ultimate solution to this problem - The LatemodelRestoration.com Mustang Speedometer Gear Calculator! All you have to do is plug in your transmission, rear end gears and tire size information to get the most accurate part for your Stang! This is the perfect speedometer gear tutorial for your SN-95 and Fox Body Mustang and best of all you don't even have to remember the calculation formula. Read the article in the link above for speedometer correction for all 79-2014 Mustangs.

Be sure to bookmark this calculator and share it with your friends! This calculator will work for your manual transmissions such as Tremec t5, t45, TKO 500/600 and more. Plus it will calculate for automatic transmissions such as AODE, 4R70W and more!

We carry a wide selection of Mustang speed correction parts, We also have gear kits available to save you time and money.

17,18,19,20,21,23 tooth Speed-o-meter Gears available
6,7 tooth Drive Gears available
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If you are changing out the rear gears on your fox body or SN95 Mustang, you are going to have to correct your speedometer. The most popular method for doing so is by swapping out the driven gear on the end of the speedometer cable or speed sensor.

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To figure out which gear you need, visit LatemodelRestoration.com and use our exclusive Mustang speedometer gear calculator. You can select your transmission, manual or automatic, your drive gear teeth, 6,7 or 8, pick out which gear ratio you're using and then select your tire size. Click the calculate now button and we'll tell you exactly what you need to correct your speedometer.

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Regardless of the gear ratio you choose we offer speedometer driven gears in many different tooth counts for both manual and automatic transmissions as well as the internal drive gear for t5 transmissions. These internal drive gears are pretty difficult to swap out requiring you to remove the tail shaft review transmission.

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Swapping out the speedometer driven gears extremely simple are you going to do is remove the single retaining bolt, slide the cable or sensor out in the transmission, remove the clip, slide your old gear off, put your new gear on, reinstall the clip, slide it back in the transmission and reinstall the retaining bolt.

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Check out the speedometer gear and the speed correction category on LatemodelRestoration.com and get your speedometer back on the straight and narrow today!

1979-1993 Fox Body Mustang Speedometer Gear & Speed Correction Tech Info

Switching to a different gear ratio or taller tires tends to throw off your speedometer reading. Correct it with a speed correction 1979-1993 Mustang speedometer gear. Choose the right 6, 7, 17, 18, 19, 20, 21, and 23 tooth speedometer gear for your application. Each gear comes with a new Ford replacement retaining clip to keep it in place. Add a speedometer cable, grommet, or speed sensor to your order to get your fox body speedometer reading correctly to avoid costly tickets!