Speedometer Driven Gear Type 3 19-Tooth Mustang Automatic/ Manual Transmission 1965-1998

CJ's Part Number:
HW1276
Speedometer Driven Gear Type 3 19-Tooth Automatic/Manual Transmission is rated 5.0 out of 5 by 3.
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Highlights

  • Right Hand Rotation
  • Sold Individually
  • Works On Auto Transmissions
  • Works On Manual Transmission
MSRP $13.99
$12.99
You save 7%

Type 3 19-Tooth Speedometer Driven Gear for 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998 Mustangs with an Automatic or Manual Transmission.

If you would like to enhance the quality of your 1965-1998 Mustang, this brand new Type 3 19-Tooth Speedometer Driven Gear is sure to help you get the job done. 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. It is sold individually and is meant for right-hand rotation.

Features and Benefits:
- For Right-Hand Rotation
- Sold Individually
- Works With Automatic and Manual Transmission
- Reliable Durability

Vehicle Fitment:
- 1965-1998 Mustangs with an Automatic or Manual Transmission
- C4, C6, FMX, Ford 3-Speed, Ford 4-Speed, T-5, Tremec and T-45 Transmissions
* NOT for use with AOD, AODE and 4-Speed Toploader Transmissions

California Residents: Proposition 65 Warning

Video Transcript

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.

Vehicle Fitment

Rated 5 out of 5 by from Speedometer gear My car was running 10 miles an hour too fast. I have a 17 tooth gear and bought this 19 tooth gear and it makes my car run exactly as fast as the speedometer says it's going. Slow your speedometer down by 5 miles an hour by adding one tooth. 10 miles an hour add two teeth.
Date published: 2018-05-05
Rated 5 out of 5 by from very nice well needed part, fit great. Good value. No complaints
Date published: 2015-08-14
Rated 5 out of 5 by from solid, no burrs. Free shipping + 10.00 off. What's not to like....
Date published: 2016-12-16
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How do I return a part

Asked by: PoBoy
Please call toll free at 1-800-888-6473 and speak with a customer service rep.
Answered by: rk cjpp
Date published: 2019-05-16

I just switched rear end from 8" to a 9" Ford n a 1968 Mustang. Which speedometer gear do I need to buy if the new gear ratio is 3:50?

Asked by: Smokey Bob
You would need to check the accuracy of the speedometer with gps, (like with a smart phone) and what gear you currently have in the transmission. If the speedometer reads low you will need a gear with more teeth,You will need a gear with less teeth if it reads to high.
Answered by: rk cjpp
Date published: 2018-08-27

Hi Does this one apply for a 69 mustang? Thanks

Asked by: RockNRoLL
Yes it could, it depends on 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.
Answered by: rk cjpp
Date published: 2018-07-09

Which speedometer is the best for a 351W with a C6 Transmission. The engine has 500 HP and 502 of torque

Asked by: Ron1
If the speedometer reads high use a gear with less teeth if it reads low use a gear with more teeth. There are many factors involved in choosing a speedo gear like rear gear ratio, tire RPM's etc.
Answered by: rk cjpp
Date published: 2017-10-17
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