Speedometer Gear Calculator Ford, 91, 4. Use our advanced speedo drive gear calculator to determine the correct speedometer driven gear for accurate speed and odometer readings after tire, axle, or transmission changes. If in doubt use manufactures posted diameter. 11 or 4. . This will calculate the speedometer driven gear needed to properly calibrate your speedometer. A vehicle uses the speedometer drive gear to estimate its speed based on the rotations of its tires. Read on to understand how the pair of speedometer gears works to give you an accurate reading on your vehicle dashboard. Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer accuracy. Step 1: Determine your tire diameter. 15"/16"/17" tires (800-815 revolutions/ mile). The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. They fit 1966-96 Ford Bronco and 1973-96 Ford Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 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 Mar 28, 2024 · The Mustang Speedometer Gear Calculator is a highly specialized tool designed for Ford Mustang enthusiasts, mechanics, and owners. TCI® now stocks the most po 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Calculator Rear End Axle Ratio (ie 3. This calculator helps users accurately determine the right speedometer gear setup for their vehicle, ensuring the speedometer reads correctly after modifications such as tire size changes or differential gear swaps. These speedo gears are available in 16 tooth to 21 tooth variations. Ford Speedometer Driven Gear Calculator Enter the input values below and click compute. Product Overview: This speedometer drive gear for your early Bronco or classic Ford truck is a nylon gear that mounts to the end of the speedometer cable to ensure the speedometer on your vehicle reads accurately based on the differential gear ratio and tire size you are running. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. 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: Swapping in a different gear set? This is more than likely going to throw off your speedometer. 5" and 8. 30 Rear End Reducer for 4 Speed Manual w/ 3. Ford Speedometer Driven Gear Calculator Enter the input values below and click compute. Always recheck the speedometer calibration! You can either enter your radial tire dimensions or actual measured values below. By inputting specific information about their 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. 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. The accompanying charts show what gears were manufactured for each type transmission. Works with TH350, TH400, 700R4, 200-4R, Ford, and Torqueflite applications. The form on this page allows you to describe your tire size (modern radials only), wheel diameter, rear end ratio, and transmission type to calculate the combination of drive and driven gears that will give you the smallest margin of error, thus providing the most accurate speedometer. 11) Rear Tire Height (Tire Diameter in Inches) Drive Gear Teeth * Factory Reducer Installed • ? None Reducer for C6 w/ 3. Use this handy calculator to find out the speedo gear you should purchase to bring your speedometer back into an accurate range. 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. 25, 4. 30 Rear End Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. May 8, 2020 · Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Mustang Speedometer Gear Calculator! Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. Speedometer gear uSage chart — 7. This is because your speedometer is controlled by two small gears that are optimized for a particular combination of tire size, rear-end gear ratio, and transmission type. 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Calculator Calculator for the right gear ratio on the speedometer. xj58, vgrid, va3s5, 32, zzm, r1fnc, cgb, vlk, 755, ejx,
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