Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission

CJ's Part Number: HW1290
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$16.75
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Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission
Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission Play Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission Video 1

Product Description

Type 3 23-Tooth Speedometer Driven Gear for Mustangs with an Automatic or Manual Transmission.

This type 3 speedometer driven gear is typically used on transmissions where the speedometer gear access hole is on the driver side of the transmission. Speedometer gears attach to the end of the speedometer cable and are inserted into the end of the transmission.

Can be used with the following automatic and manual transmissions, C4, C6, FMX, Ford 3-Speed, Ford 4-Speed, T-5, Tremec and T-45. Not for use with the following automatic and manual transmissions, AOD, AODE and 4-Speed Toploader.

*Type 3 gears are for right hand rotation.
*Sold individually.

Product Reviews

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Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission is rated 4.5 out of 5 by 2.
Rated 4 out of 5 by from Quick shipping! Fast and Quick, a lot of options! Very user friendly
Date published: 2015-05-12
Rated 5 out of 5 by from Perfect. Finally have correct speed. Super fast shipping and exactly what I needed for my 1970 mustang, C4 tranny w a 3.55 9" rear and 235/60/14 tires.
Date published: 2016-06-26
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Product Questions

I have a 1990 LX hatchback, T-5 with 7 tooth gear drive. I just installed a 23 tooth speedometer gear and the speedometer is still reading 10 mph faster than the gps. What are my options?  Tag on rearend says 2:73 gears but I don't think that's correct. 

Asked by: dcw71468
You could change the drive gear in the transmission.
Answered by: rk cjpp
Date published: 2016-08-23

I changed from an FMX automatic to a c4 auto in a 1970 mustang. The speedo cable gear is wrong How do I get the right gear to fit trans

Asked by: Dumby
A type 3 gear with the appropriate tooth count should work.
Answered by: rk cjpp
Date published: 2016-07-26

I need a LH rotation,Type 3A 23 tooth gear,do you offer that? Thanks, Mike

Asked by: Mickey1960
hi, i need the same gear as you said here, did you find it?
Answered by: ty2106
Date published: 2016-06-26

I have a 21 tooth gear and my speedo is around 6 - 8mph out (reads faster than I am going) will going to 23 tooth gear slow the speedo down to match my road speed (currently doing 70mph on speedo in top gear but really only doing a tad over 60mph via gps)

Asked by: Jay302
You will want a gear with more teeth to slow the speedo down and less to speed it up, so your only option would be a 23 tooth gear. Depending on the year, if you have an electronic speedometer you can use a speed calibration box.
Answered by: rk cjpp
Date published: 2016-06-14

Is this the correct speedometer gear for my setup? I have a 1992 T-5 (5 speed stick), I am running 4.10 gearing, my tire diameter is 25.7 (basically 26).

Asked by: Stang222
You will need to know what drive gear you are currently running and then you can use the equation found in the product video to determine what speedometer driven gear you will need.
Answered by: CJPP Dave
Date published: 2016-05-10

I have a 92 Mustang 5.0 with AOD automatic and a 6 tooth drive gear and 21 tooth driven gear and 225 55 16" tires and speedometer is 10 mph to fast. What gear do I need to slow it down 10 mph ?

Asked by: Bossy
You will need to go up 1 to 2 teeth on the driven gear. the closest you will get is a 23 tooth gear, http://www.cjponyparts.com/speedometer-driven-gear-type-3-23-tooth-aod-and-aode-automatic-transmission/p/HW1295/
Answered by: rk cjpp
Date published: 2016-03-08

looking to correct speedometer on 89 mustang, T5, 4.10 gears and stock 15" tires, is CJ's Part Number: HW1290 the correct gear, thanks

Asked by: ahanks
As long as you have 26" tires(original height) then this is the correct gear.
Answered by: Rick CJs
Date published: 2016-01-25

I have a 1992 5.0 mustang w/ automatic trans. Speedo cable and gear need replacing, which gear do I need?

Asked by: billdo66
The gear that you need depends on the gear ratio in the rear end. If you have upgraded to 3.73s or 4.10s you will want our HW1295 http://www.cjponyparts.com/mustang-parts/p/HW1295/
Answered by: Rick CJs
Date published: 2016-01-25
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Product Video

Speedometer Driven Gear Type 3 23-Tooth Automatic/Manual Transmission Video Transcript
By Bill Tumas: Today we're going to show you how to correct the speedometer in your 1964 through 2014 Mustang. If you own a 1964 through 1998 Mustang, your speedometer is going to be calibrated mechanically using a drive gear and a driven gear. The driven gear mounts on the end of the speedometer cable, and is going to go in the side of your transmission. The drive gear mounts on the tail shaft, spins the driven gear, which turns the cable and spins your speedometer.
These are the two styles of driven gears that are available. The gray gear is a type three gear, which is a right-hand rotation designed for transmissions where the cable enters on the left side of the transmission.

This here is a type three A with a left hand rotation. This will be used with transmissions where the cable enters on the right hand or passenger side of the transmission. The drop gear shown here is available in six, seven or eight tooth varieties. When paired with one of the speedometer gears it can pretty much come with any gear ratio necessary to get your speedometer pretty close. The driven gears are available from 16 tooth all the way up to 23. There is a mathematical formula you use to determine which driven gear you need based on what drive gear you are using.

What you'll want to do is take the drive gear teeth times that by the axle ratio of your car. If there are 373 gears you'd times it by 3.73 and you would times that by the tire revolution per mile, which you would be able to get off the manufacturers site for the tires you currently own. You times those three numbers together, divide by 1001 to determine which driven gear you need.

This is a speedometer gear retainer. This actually holds the driven gear to the speedometer cable itself. When ordering a new gear, it's never a bad idea to order a new retainer, as well. If you own a 1999 through 2014 Mustang you'll have to recalibrate your speedometer electronically. For 1999 through 2008 manual transmission cars you can use a speedometer calibration box here. Inside the box is a series of dip switches that you adjust to correct for speedometers. Again, this will only work on your 1999 through 2008 manual transmission. It will not work on an automatic.

For all 1999 through 2014 Mustangs the other option is going to be the X-Cal custom tuner. This will not only give you performance benefits, it allows you to calibrate your speedometer as well as your revolutions per mile to get the electronic speedometer perfectly adjusted.

Remember both gear changes, as well as tire changes, have an effect on your speedometer so you'll want to adjust accordingly. Using the drive gear and driven gear you'll be able to adjust from anywhere from a 273 gear all the way up to a 456. With electronic speedometers, it's pretty much infinite as far as the amount of adjustment.