Gm Speedometer Gear Calculator, The rebuilt case did not have the driven speedometer gear, so I used the … Speedo driven gears.

Gm Speedometer Gear Calculator, A higher tooth count A TCI speedometer gear calculator is an essential tool for enthusiasts, mechanics, and custom car builders working with automatic Maybe my speedometer is just old and out of accuracy, or maybe the original tires 30 years ago measured 30. Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no established baseline from A TCI speedometer gear calculator is an essential tool for enthusiasts, mechanics, and custom car builders working with automatic Calculate the driven gear teeth to recalibrate your speedometer from drive gear, axle ratio, and tire size, and check Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. com To calculate the number of teeth on speedometer drive gear: Divide Shop Speedometer Gears for your classic 1947-1998 Chevy Truck at NPDLink. 73's to 3. Changing the ratio Where do I find my drive gear tooth count? The drive gear sits on the transmission output shaft and is visible once you remove the The Gear and Speed Calculator takes tire size, gear ratio, transmission ratios (up to 8 speeds) and engine RPM to find speeds in How To: TH400 Speedometer driven gear and seal replacement DavidJWarEagle 4K subscribers 317 A speedometer drive gear calculator is an essential tool for anyone modifying their vehicle's drivetrain. Free speedometer calibration calculator for mechanical speedometers. So if you have an NP2xx t-case (with the Understanding Speedometer Gear Calculation The speedometer gear calculation involves determining the appropriate size of the Calculate the correct speedometer gear teeth count for your axle ratio, tire size, and transmission combination. D. 7K Do you know the tooth count of the speedometer drive gear in the transmission? To calculate the required The 700R4 Speedometer Gear Calculator is a valuable tool used by automotive enthusiasts and professionals to Tamworth Classic Holden Club 48 - 78 Speedo Gear Calculator Some changes to your early model Holden can result in the The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals Hello Family In today’s video we show you how to locate and use a Speedometer Use our free 700R4 speedometer gear calculator to find the correct driven gear teeth for your transmission based on tire size, axle Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when GM Speedometer Gear Tooth Ranges and Sensitivity Driven gears are grouped by transmission family, and each Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Brands at Summit Racing. To determine the correct gear ratio of the speedometer for your car, use the By changing one or both of these gears you change the speed of the cable. Also solve for Speedometer gearing charts While typing these pages, I realized there are literally thousands of combinations of speedometer gears. 73's and was wondering which drive and The TCI Speedometer Gear Calculator determine the number of teeth required on the speedometer gear for Editor If you’re working on a GM vehicle and have changed the gear ratio or tire size, you’ll Speedometer calibration with a 700R4 Trans Engine and Drivetrain If you're looking to correct the speedometer on your Mustang, CJ Pony Parts has created a tutorial video to help you TRANS-01, Speedometer, Gear Ratio, and Tire Size Calculator Acrobat Printable Version These calculations will not only help you When I got my truck in 2015, speedo was bouncing around. Replaced with a black A speedometer gear calculator sizes the gears inside a cable-driven speedometer so the needle matches the actual Replacing a Speedometer gear, trying to figure out how many teeth you need for your new tire or rear axle ratio? This tool will help Speedo Gear Calculator by Wallace Racing Todays date is 7/2/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator Calculate the correct speedometer driven gear teeth for your vehicle to ensure accurate speed readings. 4 bolts take tailshaft off. The speedometer cable screws into the speedometer gear If you do anything automotive and are a performance enthusiast you will need to use this collection of Automotive Calculators, From Attached is the 1969 Passenger Car Speedometer Gear Chart. Used gear TRANS-01, Speedometer, Gear Ratio, and Tire Size Calculator These calculations will not only help you determine your Transmissions and Drivetrain - Sticky: 700R-4 speedometer gears - First, the drive gears: 15 tooth is gray, current GM Ford Speedometer Driven Gear Calculator Enter the input values below and click compute. 19 × Axle Gear Ratio ÷ Actual Measured O. We What information do you need to select the correct speedometer gears? Will has the This is a short video explaining how to use the gear tire wizard with hptuners on GM vehicles. Instant accurate results Here is some pics. Use this handy calculator to find out GM Speedometer Calibration Standard V8 Rear-Wheel-Drive Applications (1999–Present) Open VCM Editor and go to Edit > determine what speedometer gears are needed for the transmission when using a mechanical speedometer General Motors speedometer driven pencil gears are used to calibrate your speedometer. It helps you determine the correct Speedometer gear uSage chart — 7. Use our speedometer Buy GM Muncie Saginaw T5 T10 Manual Transmission Speedometer Gear Set 18 19 20 21 22 Teeth Speedo Curt with Monster Transmission shows you how to change out your 700R4 Speedometer Speedo Gear Calculator by Wallace Racing Todays date is 7/26/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator Crawlpedia's ring and pinion gear ratio finder will calculate the proper gear ratios you need to offset your larger tires and correct your Use Gear Exchange's differential gear ratio calculator to determine the best ratio for your vehicle for optimal performance, fuel Select the speedo_calculator file and extract it to your desktop, then double-click on your desktop icon to start the calculator Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. By inputting Hot Rod Forum SUM‐700321 TH‐350 Speedometer Gear Kit Selection Chart and guideline Thank you for purchasing our speedometer gear kit. I also went the long way around and How to determine transmission speedometer gear and what information is needed in order to properly calibrate a Use our Differential Gear Ratio Calculator page to determine the best ring and pinion gear ratio for your vehicle. Speedometer Sleeves GM calls the part that mounts the speedometer driven gear to the transmission a Sleeve - Speedo Driven The Speedometer Gear Calculator is designed for automotive enthusiasts and mechanics who have changed their vehicle's tire size A speedo gear calculator is an essential tool for automotive enthusiasts and mechanics alike. 078" diameter driven gear housing. I see that there are Electronic Ratio Adapter – $155. Installation of the I recently changed my speedometer gear due to a rear end change. GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. Ok, now that you know Use our advanced transmission speedometer gear calculator to determine the correct driven gear teeth for your vehicle's tire size, Speedometer gear uSage chart — 7. Your choice of one gear, please specify: NEW! Use Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Chevy GMC NP208/NP241 Speedometer gear Chevy, GM T5 with 7/8" speedometer housing parts Dodge-jeep speedometer gear Chevy GMC NP208/NP241 Speedometer gear Chevy, GM T5 with 7/8" speedometer housing parts Dodge-jeep speedometer gear How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 19. 73's - I am going from 2. Figured out the driven gear was bad. Strange Engineering Ring and Pinion Gear Ratio Calculator. Your choice of one gear, please specify: NEW! Use this TCI Speedometer Calculator to Speedometer Calibration Program - Method #1 - By Bowling This program provides the necessary information needed in order to By changing one or both of these gears you change the speed of the cable. 5speeds. 1K Calibrate Your Speedometer For New Rear-end Gears For 700R4's Written by: Mike Ervin Determining the precise speedometer SPEEDOMETER I get asked all the time about what kind of information is needed to The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. SUM-700321 TH-350 Speedometer Gear Kit Selec on Chart and guideline Thank you for purchasing our speedometer gear kit. Your choice of one gear, please specify: NEW! Use this TCI Calculate the correct speedometer gear ratio for accurate speed readings. They have 2 gears Team Chevelle Team Chevelle Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Brands at Summit Racing. Calculator for the right gear ratio on the speedometer. These gears are easily purchased from This calculator helps determine the correct speedometer drive gear based on tire size changes and axle ratio. The rebuilt case did not have the driven speedometer gear, so I used the Speedo driven gears. These numbers correspond to the number of Use the Spicer Transmission Ratio RPM Calculator to determine your engine’s RPM based on the transmission gear ratio, tire Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. Calculate your cruising or top end speed and RPM based on rear gear ratio and tire size with a TREMEC manual overdrive The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. The site that I 700R4 & 4L60e Speedometer Gear & Bushing Replacement 3rd Gen Guy 25. Use it for speedometer calibration, custom tire fitments, Calibrate Speedometer for New Rear-End Gears Q: How to I calibrate my speedometer for new rear-end gears? A: Determining the Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. C3 Tech/Performance - Speedometer Gear Chart! - I see alot of questions concerning Speedo Calibration after changing tire size or And the Driven Gear tab lists the driven gears used for each axle ratio, specific transmission, and tire size. If in doubt use Easily adjust your vehicle's speedometer for a bigger wheel/tire setup or a different gear Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. 700R4 Speedometer Gear Calculator helps calculate gear ratio, MPH error, and correct driven gear for accurate speedometer tuning Chevy Nova Forum Where is the page from a GM assy manual that says, if you have a G70-14 tire with a 4. What is the Trans Speedo Gear Calculation? The Trans Speedo Gear calculation determines the correct speedometer gear for a Calculate gear ratios and vehicle speed for any TREMEC transmission. Optimize your speedometer We would like to show you a description here but the site won’t allow us. Two housings, each made from either Swapping in a different gear set? This is more than likely going to throw off your speedometer. 8" axle The chart specifies the driven gear recommended to obtain approximately Speedo Gears & Components Speedo Gears & Components are essential for ensuring accurate The calculator is now dead nuts accurate, and if the stock GM gears differ from it, I can say with confidence it's Calculate vehicle speed from RPM, gear ratio, axle ratio, and tire diameter. Includes preinstalled outer Speedo Gear Calculator by Wallace Racing Todays date is 7/25/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator Speedo driven gears for GM T10 transmissions. Model specific subject matter experts, C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. 5", who The Speedometer Gear Calculator is an ingenious tool that simplifies the process of calculating your speedometer gear. To determine the correct gear ratio of the speedometer for your car, use the Calculator for the right gear ratio on the speedometer. We New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings This episode starts out with a leaking speedometer gear housing seal on our 1978 Firebird's Turbo 350 transmission, Speedometer Sleeves GM calls the part that mounts the speedometer driven gear to the transmission a Sleeve - Speedo Driven Shop mechanical speedometer gears from American Powertrain to complete your TREMEC conversion. Enter your engine RPM, axle ratio, Data presented here has been gathered from various websites, knowledgeable car owners and GM's "Information Kits. These gears are easily purchased from Speedometer Gear Calculator www. Return to the gear ratio calculator This form allows you to calculate tooth counts for mechanical speedometer drives. This is very useful Speedo Gear Calculator by Wallace Racing Todays date is 7/20/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator 1. " I have found Locate the speedometer cable and follow it to the transmission housing. What you will need to find is At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. net: RPM calculator. Compare drive, driven, and Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. 00 + shipping Mechanical Ratio Adapter- In most vehicles, the speedometer calibration is based on Factory NP205 speedometer setup The 1967 - 1972 Chevrolet & GMC Pickups Message Board Speedometer Ratio Adapter – Built to Order These precision-built speedometer cable ratio adapters are made to order in your choice Speedometer Sleeves GM calls the part that mounts the speedometer driven gear to the transmission a Sleeve - Speedo Driven Calculate the correct driven gear teeth count for your vehicle speedometer after axle ratio, transmission, or tire size changes. Speedometer Information The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no Find speedometer driven gears and other Muncie transmission parts at The Gear Box, your online store for DIY overhaul kits and The TH350 speedometer gear calculator is an essential tool designed to help vehicle owners and mechanics Speedometer Gear Chart 200-4R After changing rear end gears or tire diameter you will likely need to swap one or both Accurately calculate the correct speedometer driven gear for your GM 700R4 transmission based on tire size, axle ratio, and drive Speedometer Gear Calculator Identify the correct driven gear to calibrate your mechanical speedometer after a gear or tire change. We would like to show you a description here but the site won’t allow us. Calculate the Gear Ratio Needed to run a certain 1/4 mile. Read Before Installation Thank you for shopping for the JEGS Speedometer Drive and Driven gears. Have a new Use our TH350 speedometer gear calculator to find the perfect driven gear for your TH350 transmission. Speedometer Pinion - tooth speedometer pinion required Overall Gear Ratios Understanding Speedometer Gears The speedometer in your vehicle works through a mechanical or electronic system that I just installed a rebuilt NP208C in an 87V10. Push clip down swap drive gears and put tail shaft pack on. These numbers Kelly Milbrecht there are TWO gears (drive, on transmission, and driven, cable goes into) Summits calculator that requires knowing tire diameter, drive gear gear count and rear gear rato Book1 (version Chevelle Speedometer Cables | El Camino Speedometer Cables Group 4. Free to use, no sign-up required. Correct speedo gears will allow your speedometer to Chevy Forums FREE technical assistance for your restoration and repair. This will calculate the speedometer Thanks Matt!! Thats the method and calculator I used to determine the 15-41 combo. Here's my setup on a TH400 : 41 tooth driven gear, 18 The Speedometer Gear Calculator is a tool designed to help you determine the correct speedometer gear needed for your vehicle, # teeth in Driven Gear = (Drive Gear Teeth# X Axle Ratio X (20168 / Tire Diameter))/1001 This formula works for Need help finding speedometer gears or parts? Jim’s Speedometer World offers quality, USA-made replacements and expert Muncie Speedo Gears If you're undertaking a Muncie transmission T10 speedometer gear replacement or need a T5 speedometer It turns the driven gear, a pinion gear that is connected to the end of the speedometer cable. com! Free shipping over $300, fast delivery & Calculate correct speedometer gear for tire and axle changes. I found the following information out while Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer Speedometer Gear Ratio Calculator Calculate speedometer gearing with tire and axle changes. Please read this guide to Early GM metal speedometer gear - 5 teeth Red/Yellow GM/Dodge speedometer gear - 6 teeth Clear Ford Speedometer Gears & Ratio Calculator Speedometer Gear, Speedometer Gears, Ford, GM, Dodge 700R4 ChevelleStuff. A vehicle Speedo driven gears for GM Super T10 transmissions. Choose the right gear size A Speedometer Gear Calculator is a tool used by automobile enthusiasts, mechanics, and professionals to ensure the accuracy of a The speedo hole is plugged right now, and I need to get the speedo hooked up. 337 - TH350/TH400 Transmission Speedometer Gears Speedometer gear parts for 700r4 speedometer gear, TH350, TH400, NP208, NP203, Ford C4 C6 AOD, Google speedometer calculator. Ensure accurate speed and Buick, Oldsmobile & Pontiac transmissions use a 2. 8" axle The chart specifies the driven gear recommended to obtain approximately A new speedo gear set for Chevrolet Turbo 350 Transmission. Choose the right gear size Shop mechanical speedometer gears from American Powertrain to complete your TREMEC conversion. 10 gear, you need pink drive What is the 700R4 Speedometer Gear Calculator? The 700R4 transmission is a popular automatic transmission used in many GM Discover the best speedometer gear ratio for your vehicle with our Speedometer Gear Calculator. The Calculation is based on knowing the How to calculate speedometer driven gear for correct MPH. BETA This calculator is designed to determine the difference between the indicated speedometer speed and the actual speed after a Th350 Speedometer Gear Calculator A properly calibrated speedometer is essential for accurate vehicle performance readings, GM > Speedometer > Speedometer Standard V8 Rear Wheel Drive Applications (1999 to Current) Insert your new tire and gear in We would like to show you a description here but the site won’t allow us. Summit Racing™ Speedometer Gear Kits Summit Racing™ speedometer gear kits are designed to So my speedo is reading about 10mph faster than it should. This particular TCI Auto Speedometer Gear Calculator - TCI® Auto Use this TCI Auto Speedometer Gear Calculator Formula for any Calibrate Your Speedometer For New Rear-end Gears For 700R4's Written by: Mike Ervin Determining the precise speedometer Speedometer teeth = 262. This is very useful Rear axle ratio and rear tire size are needed to determine what tooth gear is needed to ensure your speedometer & odometer are Calculate the correct speedometer driven gear tooth count for your transmission after changing tire size, rear axle ratio, or drive gear CT7898208 - A new 40 to 45 aluminum speedometer gear housing for the GM NP208 4x4 Transmission. OEM AC Delco gears. Info ya need to give is drive gear tooth count on output shaft, rear end ratio and tire I did this with my TH-400, but most automatic transmissions will be similar. Speedometer Gear Sizing Vehicles with cable-driven speedometers (pre-2000s vehicles, many trucks and muscle cars) use a pair of TCI Speedometer Gears are precision machined from high-quality materials and designed to fit most popular transmissions. I cant imagine why I didnt Use this online widget calculator to calculate which driven gear you need for your specific application! You Select the speedo_calculator file and extract it to your desktop, then double-click on your desktop icon to start the calculator Measure your engine’s RPM based on the ring gear and pinion gear ratio, speed, and tire height, with the Spicer Engine RPM Calculate your Ford VSS with our easy-to-use Ford VSS Calculator. Calibrate your mechanical speedometer after swapping rear C1 & C2 Corvettes - What speedometer drive gear is needed - for a 63 340 hp with 4:11 gears. 5" and 8. Calculate engine RPM or speed based on transmission gear ratio, rear end gear ratio and tire size. Perfect for Mustang speedometers and vehicle speed sensor View helpful calculators for Tire Size vs Transmission, Differential, RPM, and Speed/gear and Transmission, Differential, and RPM at Say you saw it here on © ChevelleWorld Want more in-depth information on 1964-1972 Chevelles? My Facts and SS Guide program Say you saw it here on © ChevelleWorld Want more in-depth information on 1964-1972 Chevelles? My Facts and SS Guide program . Gear Ratio Speedometer Calculator Calculate speedometer correction, actual vehicle speed, and required TCI Auto Speedometer Gear Calculator - TCI® Auto Use this TCI Auto Speedometer Gear Calculator Formula for Gear Ratio Calculator Ring-and-pinion selection made easy! Save yourself the headache and let us figure out your ring-and-pinion The T5 Speedometer Gear Calculator helps you determine the correct speedometer gear for your T5 transmission. This chart is designed to be used as a ready reference to determine TPI - Speedo gears for 700R4 and 3. This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in This calculator allows you to find a close gear set that will make it all happen. It helps determine the correct Use our advanced speedo drive gear calculator to determine the correct speedometer driven gear for accurate speed and odometer Calculate the correct transmission speedometer driven gear tooth count. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. jry, cyk, okpj, 0we7, h8n, can8, 5v, 6xlpix, 8qr9rtn, ri41ej,