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Ford Speedo Gear - 20 Tooth (83-98 w/ Automatic Transmission)

Item 53684
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      Product Information

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

      Features

      • Corrects Speedometer for Gear Changes
      • Orange - 20 Tooth Speedo Gear
      • Genuine Ford Part
      • Ford Part# C8SZ-17271-B
      • Speedo Gear Retaining Clip Included
      • Fits 1983-1998 Mustangs with a Automatic Transmission

      Description

      Corrects Speedometer. Changing the rear gears in your Mustang is great for performance, but it will also throw off your speedometer. Now you can correct your speedometer readings with a Genuine Ford Speedo Gear from AmericanMuscle.

      Ford Motorcraft Quality. When adding performance parts to your Pony, trust the folks that know it best to provide top quality components that are made to out perform and out last the competition.

      Application. This Genuine Ford 20 Tooth (Orange) Speedometer Gear is for use with 1983 to 1998 Mustangs equipped with a automatic transmission that have changed gear ratios to accurately correct MPH reading of your speedometer. A speedo gear retaining clip is included.

      Speedometer Chart
      Axle Ratio 6 Tooth Drive Gear 7 Tooth Drive Gear8 Tooth Drive Gear
      2.73-1618
      3.08-1820
      3.27161921
      3.55172023
      3.731821-
      4.102023-
      4.3021--
      4.5623--


      Transmission16T17T18T19T20T21T
      ManualWineWhiteYellowPinkBlackRed
      AutomaticBlueGreenGrayTanOrangePurple

      Manual Transmissions with 7 Tooth Drive Gear

      • 1983-1989 T-5 OEM
      • Pre 1993 T-5 Aftermarket
      • 1996-1998 Cobra T-45 OEM
      • All Tremec Transmissions

      Manual Transmissions with 8 Tooth Drive Gear

      • 1990-1998 T-5 OEM
      • 1996-1998 T-45 OEM Except Cobra

      Automatic Transmissions with 7 Tooth Drive Gear

      • 1983-1989 Automatic Transmissions

      Automatic Transmissions with 8 Tooth Drive Gear

      • 1990-1998 Automatic Transmissions

      Fitment: 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 Details

      MPN# C1DZ-17292-A

      C8SZ-17271-B

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      5.0

      Customer Reviews (7)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 7 customers

      Installation Time: Less than 1 Hour





      • October 18, 2017

        5 1990 Other - LaronT Installation Time: Less than 1 Hour

        SPEEDO GEAR

        THIS IS A MUST IF YOU HAVE UPGRADED YOUR REAR GEAR. MY SPEEDOMETER WAS OFF 10MPH BEFORE THE SPEEDO GEAR CHANGE.

        Helpful (10)
      • January 12, 2017

        5 1991 LX - Jay Installation Time: Less than 1 Hour

        Speedo gear

        It's great that you can still buy OEM parts when performing upgrades.

        Helpful (10)
      • January 11, 2017

        5 1996 V6 - zeroj7 Installation Time: Less than 1 Hour

        Just what i needed.

        I bought my car used and knew the speedometer could not be close to right. With the help of gps unit i found out that with my speedo at 80mph i was going 62mph. A little use of an online calculator and found i needed a 20 tooth speedo gear. It is an OEM ford part and came with the clip. Took about 5 mins to install, once i had the car in the air. Super easy. Thanks American Muscle!

        Helpful (10)
      • March 17, 2016

        5 1995 GT - Phats

        Great item to complete a 4.10 gear

        It worked perfect with the 4.10 gear we install speedometer is dead on.

        Helpful (9)
      • November 22, 2013

        5 1995 GT - taylor95gts Installation Time: Less than 1 Hour

        20 Tooth Gear

        This product was in the original Ford bag, came perfect, arrived on time, and worked perfect. It was also cheaper here than anywhere else.

        Helpful (8)
      • August 22, 2013

        5 1991 GT - mustang68 Installation Time: Less than 1 Hour

        Speedometer gear

        The gear was a simple exchange. There obviously was no performance gain, but now I can drive the speed limit without fear of being ticketed.

        Helpful (10)
      • July 24, 2013

        5 1989 Other - Mikem89 Installation Time: Less than 1 Hour

        Super easy to install.

        Easy install. Corrected my speedo from my 355 gears

        Helpful (9)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      Will this fix the speedometer reading by itself or will I need to buy the drive gear also

      • The Ford Speedo Gear will be all you would need to correct your speedometer reading. However, you will need to get the right tooth gear for your set up.

      Helpful (0)

      Will this work with 373 gears ? If not which one will

      • The Ford Speedo Gear - 20 Tooth will not work with your 3.73 gears. As far as which gear you need will depend on what drive gear you have. If you have an 8 tooth drive gear there will not be a speedo gear for 3.73s. However, if you have a 7 tooth drive gear you will need the 21 speedo gear. https://www.americanmuscle.com/speedo-gear-21tooth-auto.html

      Helpful (0)

      Will this fit my 1998 Mustang GT Automatic with 4.10 gears?

      • This will be the speedo gear that you need for an automatic with 4.10 gears.

      Helpful (0)

      Is this a OEM Fit for the stock 96 v6 automatic ?

      • Yes, this will fit no problem.

      Helpful (0)

      which drive gear do i have 98 GT I need to correct my speedo after puting in new rear end gears. how do i figure out which speedo drive gear I have so i can get the correct speedo gear to go with it. 98 GT with Auto Trans.

      • Its already for all automatic transmission From model 83 to 98

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Hardware included:
      • (1) Speedo Gear
      • (1) Retaining Clip

      Tech Specs

      Manual Transmissions with 7 Tooth Drive Gear

      • 1983-1989 T-5 OEM
      • Pre 1993 T-5 Aftermarket
      • 1996-1998 Cobra T-45 OEM
      • All Tremec Transmissions

      Manual Transmissions with 8 Tooth Drive Gear

      • 1990-1995 T-5 OEM
      • 1996-1998 T-45 OEM Except Cobra

      Automatic Transmissions with 7 Tooth Drive Gear

      • 1983-1989 Automatic Transmissions

      Automatic Transmissions with 8 Tooth Drive Gear

      • 1990-1998 Automatic Transmissions

      Will It Fit My Mustang

      • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Other - 83, 84, 85, 86
      • V6 - 94, 95, 96, 97, 98

      For use with Mustangs equipped with a automatic transmission

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