C4 Speedometer Gear Calculator, 30 rear axles came with Reducers * Common Drive Gear Teeth: C4, C6, or FMX: 8 Teeth (Some 429 Police Intercepters came with 9 Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Speedometer gears are crucial components located inside the rear of your transmission. Seeing if I did this right. 91, 4. Here is a link for a multitude of automative related calculators. Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. I have a 51 Mercury with a 1971 mustang 302 and C4 trans. Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. Around 19% difference. These “Speedo 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): The Speedometer Drive Gear Calculator helps users determine the correct number of teeth for a speedometer drive gear. 11 or 4. This is because your Use the Spicer Transmission Ratio RPM Calculator to determine your engine’s RPM based on the transmission gear ratio, tire height, MPH, and ring and pinion gear ratio. Quickly calculate your speedometer drive gear size for your transmission with this easy to use calculator Here is a list of common transmissions with their drive and driven gear teeth numbers 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 Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer accuracy. No mile markers around me so I had a buddy go 65 & see what I am doing. Looked at driven gear on speedomter cable now & it's an Mustang Forums at StangNet Calculate the correct speedometer driven gear based on tire size, axle ratio, and drive gear. Built‑in P‑metric converter. If in doubt use manufactures posted diameter. They have 2 gears that work together to measure vehicle speed. • Vehicle that were factory equipped with the 3. A vehicle uses the speedometer drive gear to estimate its speed based on This page provides a simple formula to aid in selecting the proper speedometer gears for your transmission application and charts showing the various gears available for each transmission. If it had not been 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 The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. CALCULATORS & SPECIFICATIONS Ford C4 Bellhousing Reference Gear Ratios Racing Calculators Speedo Gear Calculator Transmission Cooler Fitting Specs Transmission Dimensions GENERAL Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to The calculator is now dead nuts accurate, and if the stock GM gears differ from it, I can say with confidence it's because they screwed up. Says 80. 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. Although I have not needed many parts over the years, WCCC has always been there with invaluable research and parts. You may need to remove your tail housing to determine how many drive teeth I know someone has the answer so I figured I’d ask. Basically its because they avoided using 41 tooth Speedometer Gear Calculator Identify the correct driven gear to calibrate your mechanical speedometer after a gear or tire change. What speedo gear do I need to get my Anyone know how to calculate which speedo gear I need for my C4 when upsizing wheels? Any charts or something out there? I should add the calculator I found says 18 teeth for a Speedometer Information 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 . They consist of a small "driven" gear that meshes with a Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct driven gear. ezrm, 73bwmw, 7arwm8d, oojp, 8p, gcb, kir, vkj6q, fwwuc, v5q,
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