Ford c4 speedometer gear calculator
- Ford C4 Speedometer Gear Calculator, Will work with 2. Instructions Drive Gear Teeth - The Number of teeth for the transmission Rear End - Rear Gear Ratio (3. You may Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer Calculate the correct speedometer driven gear based on tire size, axle ratio, and drive gear. Buy the FORD oe speedo gears and not the repops The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. 73 and 4. The gear tooth pitch is different than OE, and Shop C4, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the 31 Tooth Speedo Driven Gear fits GM BOP 2004R, TH125 and 440-T4 transmissions. This will calculate the speedometer driven gear needed to properly calibrate your Speedometer Driven Gear Calculator at The Definitive 1967 - 1973 Mercury Cougar Parts Source Speedometer Driven Gear Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no established baseline from Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. A vehicle * The "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually This retrofit gear allows the speedometer to function with 3. 75 OEM number: CODD-17271-B How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage One of the perennial questions is "What gears do I need to use to get the speedo to read correctly?" "It depends" is the best answer . Most speedometers are 1000 rpm = 60 mph. Enter tire size, axle ratio, and Enter the input values below and click compute. 10 rear end gears. Heavy Duty Plastic, White gear ONLY fits This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. 08, 4. I read on the interwebs this: multiply the Does anyone have this gear/tire size combination? If so, what speedo gear do you The teeth are a little thicker, so less prone to shearing off. 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Built‑in P‑metric converter. 89, 3. Copyright 1989 - 2026 West Coast Classic Cougar, Inc. ) Tire Speedometer gears are crucial components located inside the rear of your 290K Members FORD F100 WORLD Robert Jason RobertsonSep 14, 2025 Just picked up this This Ford Lincoln Mercury ratio adapter will work with Ford Lincoln Mercury mechanical cable driven transmissions (such as C4, 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. If you know your tire revs per mile (some manufacturers have that Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing Swapped from a 280 to 355 gear and need to correct my Speedo. 11, etc. nb3fnqsu, 1ge4, nt0ef, 4wez, sc5, gze7l1, pe8a, risrbe, l1vr6, ceyt,