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Ford Speedometer Drive Gear - 7 Tooth (83-98 w/ T-5 Transmission)

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  • Item 53653
  • MPN# E3ZZ-17285-A

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    Features & Details

    • Corrects Speedometer for Gear Changes
    • 7 Tooth Drive Gear
    • Genuine Ford Part
    • Ford Part# E3ZZ-17285-A
    • Fits 1983-1998 Mustangs with a T5 Transmission
    Corrects Speedometer. Upgrading to a steeper rear gear for more grunt off the line 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 7 Tooth Speedometer Drive Gear is for use with 1983 to 1998 Mustangs equipped with a T5 transmission and is a direct fit replacement for the 1983-1989 factory gear. 


    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
    • 1990-1995 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

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

    What's in the Box
    • (1) 7 Tooth Drive gear
    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

    • 1990-1995 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?
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 93, 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

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    3 Questions / 3 Answers

    Ask a Question

    I have a 98 manual v6 with 3.73 and my speedometer is off would this fix my problem

    BlackBoe901

    • Your 98 V6 would require the 7 Tooth Ford Speedometer Drive Gear used in conjunction with a 21T speedometer drive gear to correct the speedometer for 3.73 gears.

      Rob D

    Helpful (0)

    I have a 98 gt with a manual tremec t45 and 3.73 rear end gears. Would I need a 21 tooth Speedo gear along with this 7 tooth drive gear to correct my Speedo?

    GageR

    • For a 1998 GT, we would recommend the Ford Speedometer Drive Gear in a 7 tooth configuration with a 21 Tooth Ford Speedo Gear.

      Rob D

    Helpful (0)

    Will this work on a automatic?? I have a 98 mustang gt automatic and i am doing a 3.73 gear swap so i have to switch to a 7 tooth drive gear and a 21 tooth speedo gear will this work on the automatic as well and if not which 7 tooth drive gear do i need to purchase???

    italianstallion

    • No

      Runningstang2004

    Helpful (0)

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    Customer Reviews (14) Write a Review

    Overall Rating 4.3

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Performance Gain 3.416667 3.4
    • Fit 4.384615 4.4



    • 5/5

      Installation Time: Less than 1 Hour

      January 29, 2018

      Ford OE Part

      Fits perfect and replaced my stripped out one. I wish it came with a new retainer clip but it's fine.

      terdFerguson545

      Year: 1988 Submodel: GT

      Helpful (1)

    • 1/5

      Installation Time: Less than 1 Hour

      December 03, 2017

      Don’t buy

      Teeth are not fully cut, thought I got a defective one. all the big after market retailers buy from the same disturber, look at smaller different companies like I did after ordering and returing 3 of these gears

      JoeyC

      Year: 1987 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      November 24, 2017

      Great product

      Great product, easy to install, exactly as described, thanks AM

      Perry52D

      Year: 1988 Submodel: LX

      Helpful (1)

    • 1/5

      May 12, 2017

      Unfinished Ford part

      I ordered two gears a 6 and 7 tooth drive gears , had to use the 6 tooth because Ford never checked out the quality of the 7 tooth job because plastic was still in the grooves

      Stangman

      Year: 1995 Submodel: GT

      Helpful (3)

    • 4/5

      August 01, 2016

      Probably works with the T5

      This will probably work with the T5, but I have a T45 and nobody seems to sell this gear for the T45. I bought this thinking (for some reason) that it would fit the T45 but it did not. Other than the smaller shaft size, this gear is the same as it would be for the T45, so I chucked it up in the lathe and bored it out to have a 0.02" press fit over the T45 drive shaft. Pressed it on and it works great with my 3.55:1 rear end and 20 tooth speedometer gear. If I recall correctly the drive shaft outside diameter is 1.375" and I bored out the gear to 1.355" as I said before, it works great

      tiwake

      Year: 1998 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Afternoon

      December 19, 2014

      gears

      These are OEM drive gears from ford so they were a direct fit no modifications were needed ...awesome speedometer works great ...thank you so much american muscle

      axeman31

      Year: 1992 Submodel: Cobra Jacksonville, FL, USA

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      July 06, 2014

      Speed - O - Gear

      Good quality. Be sure to order the retainer clip. It does not come with it.

      Keithb87

      Year: 1989 Submodel: GT Mesa, AZ, USA

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      June 25, 2014

      Fixed speedo

      Corrected my gauges after my gear change. A must have!

      Iowaguy

      Year: 1995 Submodel: GT Iowa

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 23, 2014

      Is necessary to get speedo right for new rear gears

      I purchased new rear end gears and replacing the speedometer drive gear was required to retain the correct speedometer reading. Was a little work since transmission removal was required but not that big of deal with a little mechanical know how.

      KeyserFamilyRacing

      Year: 1993 Submodel: GT Marion, IL, USA

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      July 24, 2013

      Worked exactly as I needed it to

      High quality product, worked perfectly and was easy to install once you remove all of the necessary parts.

      Jmil918

      Year: 1995 Submodel: GT Wichita, Ks

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      May 17, 2013

      overall good product

      Fits good since its a ford original piece fixed my Speedo when combined with the 21 tooth gear.

      Krem12

      Year: 1990 Submodel: Other WI

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      September 12, 2012

      Speedometer Drive Gear - 7 Tooth (83-98 T5)

      just wanted to add something to the installation guide, do not forget to put the shift linkage coupling and spring & ball in the housing before the tail shaft goes all the way on, or like me you will be pulling it back off :( this is not in the Installation Guide

      93lx5oh

      Year: 1993 Submodel: Other ohio

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      April 29, 2012

      7 Tooth Speedo Drive Gear

      If you have changed rear gears, or your old one is worn out this is a simple part that installs easily once you have your transmission apart.

      Drake

      Year: 1985 Submodel: GT Saskatoon, SK, Canada

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      February 20, 2012

      PERFECT FIT

      It corrects the speedometer when changing your stock gears to 3.73. Easy to change when transmission is down.

      wisar09

      Year: 1995 Submodel: GT Vallejo, CA

      Helpful (3)

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