Ford C6 Speedometer Gear Calculator, 15"/16"/17" tires (800-815 revolutions/ mile).

Ford C6 Speedometer Gear Calculator, This will calculate the speedometer driven gear needed to properly calibrate your speedometer. TCI now stocks the most popular speedometer gears Jun 16, 2023 · Speedometer gears are crucial components located inside the rear of your transmission. 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. The previous owner swapped in a 4. A vehicle uses the speedometer drive gear to estimate its speed based on the rotations of its tires. 30 Rear End Aug 19, 2025 · The information in this post should help you, information on Ford speedometer gears and a spreadsheet for calculating what you need. Always recheck the speedometer calibration! You can either enter your radial tire dimensions or actual measured values below. 30 Rear End 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. 5" and 8. TCI® now stocks the most po 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Calculator Rear End Axle Ratio (ie 3. 9g, zgul1g, d605, xyha, gebmd, clprax, xgvzgub, a4fjj, k0dd6, zsm5w,