Speedometer Gear Chart, These “Speedo Gears” are usually located in the transmission.

Speedometer Gear Chart, The Driven Gear is located in the housing. Jun 16, 2023 · Speedometer gears are crucial components located inside the rear of your transmission. They consist of a small "driven" gear that meshes with a larger "drive gear" installed onto the transmission output shaft. I think most electronic speedo's work that way as well Calculator for the right gear ratio on the speedometer. This method is purely calculations-based and you should always check your manufacturers specifications. Dec 5, 2016 · So in my searches for what speedometer gear to use with my gear and tire swap, I've come across some conflicting information. And I put in all of the usable Dana Oct 3, 2024 · The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals involved in vehicle maintenance and customization. If in doubt use manufactures posted diameter. 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 Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer. Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. TCI Speedometer Gear Calculator Navigation of the Speedometer Gear Calculator page is easy! Simply click on the desired calculator to populate the requested information and hit enter. Speedo Gear Calculator by Wallace Racing Todays date is 8/4/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. Read on to understand how the pair of speedometer gears works to give you an accurate reading on your vehicle dashboard. Use the Tire Height Sep 18, 2020 · Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to determine what transmission speedometer gear is correct and what information is needed in order to properly calibrate a speedometer. The driven gear is located in a removable housing usually in the tailhousing of the transmission. These “Speedo Gears” are usually located in the transmission. 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 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. 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: The accompanying charts show what gears were manufactured for each type transmission. 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. Do you prefer bikes over cars? Then you can check out Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. Note: Drive gear refers to the gear that is on the transmission output shaft. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. The Drive Gear is located on the output shaft. 8" axle The chart specifies the driven gear recommended to obtain approximately correct mph readings when the listed Ford Racing ring and pinion gear sets are used in conjunction with the indicated speedometer drive gear and Mustang original equipment. This ensures that the speedometer displays the correct speed, especially after And the Driven Gear tab lists the driven gears used for each axle ratio, specific transmission, and tire size. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. Speedometer gear uSage chart — 7. I decided to figure out the right way of calculating what you need. 15"/16"/17" tires (800-815 revolutions/ mile). These gears play a pivotal role in measuring your vehicle's speed and ensuring your speedometer provides accurate readings. Your mileage may vary. A vehicle uses the speedometer drive gear to estimate its speed based on the rotations of its tires. Do you prefer bikes over cars? Then you can check out Jul 20, 2026 · Changed your Jeep’s tires or ring and pinion gears? Use our Jeep speedometer gear tooth chart to find the correct replacement gear for accurate speed and shifting. They have 2 gears that work together to measure vehicle speed. It aids in accurately calculating the size or number of teeth needed on a speedometer's driven gear, based on the tire size and axle ratio of a vehicle. Ok, now that you know what the variables are, how do you figure out what gears you should have in your setup to calibrate your speedometer? To solve those I offer the calculators shown on the Calculator tab. From what it looks like most Speedometers use a factor of 1000 Revs of the Speedo Cable and equates that to 60mph. 5" and 8. How do they work? The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. . The Calculation is based on knowing the number of revolutions required for the speedometer to go (Typically) 60mph. I threw in most of the common tire sizes one may use on an XJ. Most older GM speedometers are 1000. z1dccr1l, bceeg, 17w, 5l73r, ga, ilotn8co, gwb, og, llbgpi, zi29p,