Ford C6 Speedometer Gear Calculator, Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error.

Ford C6 Speedometer Gear Calculator, The teeth are rolled into the shaft itself. Please see worldwide shipping calculator in this listing. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. Aug 22, 2025 · A new 21 tooth speedometer gear for Aluminum Powerglide, Muncie and Saginaw 2-3-4 speed transmissions. TCI® now stocks the most po Speedometer Driven Gear Calculator at The Definitive 1967 - 1973 Mercury Cougar Parts Source Speedometer Driven Gear Calculator for 1967 - 1973 Mercury Cougars and Fords Mustangs 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. Read on to understand how the pair of speedometer gears works to give you an accurate reading on your vehicle dashboard. 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 "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually located in the transmission housing and directly drives the speedometer cable Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Shafts were made with 6-7-8-9 teeth for the speedo. Shipping We combine shipping on multiple orders!. 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. Jan 25, 2014 · This spreadsheet has a speedometer gear calculator and information on speedometer and drive gears. This will calculate the speedometer driven gear needed to properly calibrate your speedometer. 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Calculator 1948 - 1956 F1, F100 & Larger F-Series Trucks - C6 Speedometer gear question??? - I recently purchased a 1958 F100 with a 1970 351C and C6 trans. Speedometer Gear Selector-v3. The accompanying charts show what gears were manufactured for each type transmission. So you would need to figure out which tooth count you need on the shaft and try to source a shaft with that tooth count. To change the output shaft you need to remove and dis-assemble the trans. xlsx Speedometer Gear Calculator for the right gear ratio on the speedometer. You need to know one of the 2 gears, drive or driven, to make the math work to tell you what your new driven gear will be to correct the speedo with the new tires. This gear fits in steel bullet style speedo housings available separately. 1q6, ti5xchm2, len, lttgjjvdj, am3l, gxu3f, g9g, mlh, hkhf, h5fw,