Turbo 400 Speedometer Gear Chart, And I assumed my speedo would be a bit off once I did it.

Turbo 400 Speedometer Gear Chart, Calculate the tooth count of the driven gear for different transmissions and speedometer gears. The speedometer is running 10 MPH higher when running at 70 MPH (80 on speedometer). Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. These charts should help you narrow down the selection of the proper gear combination to use in the transmission and speedo cable to 'get you legal' Calculator for the right gear ratio on the speedometer. (About 10ish mph) My TH400 has an electric speedo instead of a cable. And I assumed my speedo would be a bit off once I did it. This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line! While typing these pages, I realized there are literally thousands of combinations of speedometer gears. Be aware that the same color can be used on gears with different teeth counts. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the number of teeth on the driven gear (round to the nearest available gear): Use the following formula to calculate "tire revolutions per mile" for the formula above: Apr 20, 2024 · The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. Was wondering if there is a chart to know which color gear I need since it's kinda hard to use the calculator without dropping the tailshaft off my daily? Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to properly calibrate a speedometer. er, cb, vhlls, ch, xj, ili, wyybg3, wpdfx, tt4vaf, jgm40,