Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-877-887-1105
Every day 8:30AM EST - 11:00PM EST
Win 1 of 3 Exhaust Kits! Enter Daily!

Ford Speedo Gear - 18 Tooth (83-98 w/ Automatic Transmission)

Market Price $15.99 You Save 19% ($3.00)
Starting At

$12.99

FREE Shipping on orders over $49

  • Item 383922
  • MPN# C7SZ17271C

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Corrects Speedometer for Gear Changes
    • Gray - 18 Tooth Speedo Gear
    • Genuine Ford Part Ford Part# C7SZ-17271-C
    • Speedo Gear Retaining Clip Included
    • Fits 1983-1998 Mustangs with an Automatic Transmission
    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 18 Tooth (Gray) Speedometer Gear is for use with 1983 to 1998 Mustangs equipped with an 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 Gear


    8 Tooth Drive Gear
    2.73 - 16 18
    3.08 - 18 20
    3.27 16 19 21
    3.55 17 20 23
    3.73 18 21 -
    4.10 20 23 -
    4.30 21 - -
    4.56 23 - -


    Transmission


    16T


    17T


    18T


    19T


    20T


    21T
    Manual Wine White Yellow Pink Black Red
    Automatic Blue Green Gray Tan Orange Purple


    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

    What's in the Box
    • (1) Speedo Gear
    • (1) Retaining Clip
    Installation Info
    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

    • 1990-1998 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

    Will it fit my Mustang?
    • Cobra - 94, 95
    • 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 an automatic transmission

    You Might Also Like

    Customer Photos

    More Products You Might Like

    Questions & Answers (1)

    1 Top Rated Question

    Hi I have swapped out my 1949 Mercury 3 speed gearbox for a T85C overdrive gearbox. Now I can't find the right speedo gear to mesh with this gearbox drive. Tooth number doesn't matter as I also have an electronic speedo that I can calibrate. The speedo gears I have tried are 3/4" diameter across the tips of the gears and only just brush the drive gear in the tail housing. So I need a drive gear with a larger diameter - maybe 7/8" across. I also have the Ford adapter that fits down the speedo drive hole in the transmission. Would this gear fit correctly? Regards Mark

    • Unfortunately, we can only guarantee fitment of this gear in an 83-98 Mustang.

    Helpful (0)
    Post Your Question

    People Who Bought This Item Also Bought

    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars




    • 5/5

      September 20, 2016

      didnt fix problem

      it was delivered quickly and install was easy, but it did not fix my spedometer issue, it actually made it go up by 5mph on the guage. i got 3.73 gears and rebuilt the rear but cant seem to get my spedometer guage to reflect the right spped, it will say im doing 90mph when im only doing 70ish. dont get me wrong the part is just fine, and american muscle, you all are amazing and provide great service, i just cant figure out how to fix the issue.

      P0L4R8E4R

      Year: 1998 Submodel: GT

      Helpful (4)

    • 5/5

      July 20, 2016

      no more tickets

      once i got a speeding ticket i figured it was time to fix my speedo definitely cheaper than another speeding ticket trust me this is something you don't want to wait on

      greyfox

      Year: 1985 Submodel: Other

      Helpful (3)

    Related Mustang Categories