How many teeth do you need for a speedometer?
Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4.10:1, unless 27 inch or larger tires are installed.
What kind of gears do you use on a speedometer?
Variables such as the vehicle’s axle ratio and tire diameter affect the accuracy of the speedometer. The following speedometer drive gears and driven gears are available for the 700R4 / 4L60 transmissions. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear.
Where is the drive gear located on a TCI speedometer?
The accompanying charts show what gears were manufactured for each type transmission. TCI® now stocks the most popular speedometer gears. Note: Drive gear refers to the gear that is on the transmission output shaft. The driven gear is located in a removable housing usually in the tailhousing of the transmission.
Is there a 90 degree ratio speedometer adapter?
Ford SPEEDOMETER 90 DEGREE RATIO ADAPTER, DIRECT or CONTINUOUS ROTATION, #43. (OUT OF STOCK). Eight pulse signal generator for your electronic speedometer head #T5DR3. Ford T5 speedometer drive gear with 8 teeth 100 Inch Speedometer Cable, 5/8 nut on top / 7/8 nut on bottom.
How many gears do you need for a speedometer?
Your speedometer may or may not show a number. Most speedometer from 1965 on use 1000. Twelve speedometer driven gears are available for the 700R4 / 4L60 transmissions to calibrate the speedometer with various axle ratios and tire diameters. The number on the driven gear housing must match the number of teeth on the driven gear.
The accompanying charts show what gears were manufactured for each type transmission. TCI® now stocks the most popular speedometer gears. Note: Drive gear refers to the gear that is on the transmission output shaft. The driven gear is located in a removable housing usually in the tailhousing of the transmission.
Where is the speedometer gear on a Mustang?
The Mustang Speedometer Gear that most closely matches your inputs will display on the right of the screen next to the calculator! You cannot change the output shaft mounted drive gear in an Automatic Transmission as the gear is part of the output shaft.
Where do you find the revolutions on the speedometer?
Look at the bottom of the speedometer face for the numbers 940, 960, 1000, or 1020. These numbers are the number of revolutions the speedometer cable must turn in one mile of travel.