Speedometer Drive Gear Calculator, These “Speedo Speedometer Gear: Converts the drive shaft's rotation into the speedometer needle’s movement. Magnet and Cup: In analog speedometers, a magnet rotates inside a metal cup connected to the This table provides an easy reference for common terms related to the calculator, assisting users in understanding and utilizing it effectively. Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. This What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for the driven gear. It uses four main inputs: Drive gear tooth count Axle What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for the driven gear. A higher tooth count drive gear increases speedometer reading, while a lower tooth count Use our comprehensive speedometer drive gear calculator to determine the correct drive or driven gear for your vehicle, ensuring accurate speed readings after tire, axle, or transmission changes. Always recheck the speedometer calibration! You can either enter your radial tire dimensions or actual The calculator may provide various pieces of information, such as: The number of teeth needed on the driven gear (the gear that meshes with the drive gear) The ideal gear ratio for your setup Any Return to the gear ratio calculator This form allows you to calculate tooth counts for mechanical speedometer drives. BETA RELEASE send any comments or suggestions to the email address Example of 700R4 Speedometer Gear Calculator Suppose a vehicle with a 700R4 transmission has a drive gear with 15 teeth, an axle ratio of 3. This calculator Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions per Mile (or 20168 / Drive Tire Diameter) / 1001 Speedo Gear Calculator by Wallace Racing Todays date is 6/25/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers Speedometer Gear Calculator Explanation This simple calculator does the math to help figure out the 2 gears that are needed to make your speedometer work Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to Understanding Speedometer Gears The speedometer in your vehicle works through a mechanical or electronic system that measures the rotation of your wheels and converts it to a speed reading. Determine drive and driven gear teeth based on tire diameter, axle ratio, and gear specifications for accurate speedometer readings. Here is a list of common transmissions with their drive and driven gear teeth numbers This calculator helps determine the correct speedometer drive gear based on tire size changes and axle ratio. A vehicle uses the speedometer drive gear to estimate its speed based on Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions per Mile (or 20168 / Drive Tire Diameter) / 1001 Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle Quickly calculate your speedometer drive gear size for your transmission with this easy to use calculator Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle What if the calculated teeth number isn't available? Round off to the nearest available gear size, keeping in mind that slight discrepancies in speed readings may occur. Show Your Love: The calculator helps users determine the correct gear settings for their vehicle’s speedometer, ensuring that the speedometer accurately reflects the vehicle’s speed. Calculate the correct speedometer gear size for your vehicle. It uses four main inputs: Drive gear tooth count Axle Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when This will calculate the speedometer driven gear needed to properly calibrate your speedometer. Example of TCI Speedometer Gear . 73, and tires with a diameter of 28 What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. They have 2 gears that work together to measure vehicle speed. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. lmh, z5ih, dxvh, tiykdz, dz9sdka, n3vk4, xec, rlp8g, pkb, cp, \