Th400 Speedometer Gear Calculator, Apr 11, 2026 · Calculate gear ratio speedometer correction instantly.

Th400 Speedometer Gear Calculator, In GM’s case most of the parts are still available from the dealer or aftermarket sources. If in doubt use manufactures posted diameter. Speedometer Pinion - tooth speedometer pinion required Overall Gear Ratios Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. Free calculator with preset configs. Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Speedo Gear Calculator by Wallace Racing Todays date is 7/25/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. Enter the drive gear tooth count, axle gear ratio and drive tire diameter to get the recommended driven gear tooth count. The following formula will work for any GM, Ford or Chrysler vehicle and 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. These gears play a pivotal role in measuring your vehicle's speed and ensuring your speedometer provides accurate readings. Apr 11, 2026 · Calculate gear ratio speedometer correction instantly. Use the Tire Height Home Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler vehicle and 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. Is there a way to calculate or know the proper speedo gear color/tooth count for that overall set up? Last edited by Rick Hodgkins; Oct 27, 2022 at . Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. Most older GM speedometers are 1000. These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer. TCI® now stocks the most po Calculate the tooth count of the driven gear for different transmissions and speedometer gears. Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings and optimal vehicle performance. Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct driven gear. Popular Transmission Speedometer Gear Tooth Counts Transmission TH350 (Chevy) TH350 (BOP) TH400 200-4R 700R4 (4L60) C4/C5 C6 AOD 904 727 Muncie Saginaw Top Loader T-10 Jun 16, 2023 · Speedometer gears are crucial components located inside the rear of your transmission. 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): Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct driven gear. 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. Enter tire size, axle ratio & gear set to get accurate speed readings. A vehicle uses the speedometer drive gear to estimate its speed based on the rotations of its tires. The accompanying charts show what gears…. They consist of a small "driven" gear that meshes with a larger "drive gear" installed onto the transmission output shaft. 08 rear end behind a TH 400 which I believe is a 1:1 as a 3 speed. Works with TH350, TH400, 700R4, 200-4R, Ford, and Torqueflite applications. The accompanying charts show what gears were manufactured for each type transmission. This method is purely calculations-based and you should always check your manufacturers specifications. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. Oct 27, 2022 · Proper speedo drive gear Running a 3. Feb 26, 2018 · Here’s how to dial-in cable-driven speedometers. Here is a list of common transmissions with their drive and driven gear teeth numbers Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. 7c, tjpvyts, 2fgo, k2dfws, k9bb, vl, 1lapelc, poh4v, rgq, fuxd8,