200r4 Speedometer Gear Calculator, Below you will find brief information for 700R4 Speedometer Gear.
- 200r4 Speedometer Gear Calculator, Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. I've done this in a TH350 with the removable housing but I notice that this is a 1 piece body. We can help calibrate what gears you need to work with this speedo housing! A new speedometer setup kit for 2004R transmission with 10 tooth green governor gear and 29 tooth driven gear for the 2004R Everyday Life Speedometer Gear Calculator Speedometer Gear Calculator Enter your drive gear teeth, axle ratio, and tire dimensions to calculate the correct speedometer driven gear for your vehicle. Can you determine what driven gear I need to correct my '57 speedometer from these facts or do I need to pull the gear out and check which drive gear I have? 1988 700r4, 336 gears, 26" I need to change the speedo gears in my 200R4 for all the typical reasons. With the 3. I was moving with traffic on I-5, but only C3 Tech/Performance - How to change 200R4 drive gear? - Hello I need to change the drive gear inside the 200R4 because I change the rear end ratio, I need some guide lines and Find the correct speedometer driven gear teeth after changing tire size or axle ratio. I understand that some gear combo's for the speedo drive are no longer . 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. My tire TCI Auto Speedometer Gear Calculator - TCI® Auto Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. net: RPM calculator. SPEEDOMETER GEAR CALCULATOR Speedometer Gear Calibrator Speedometer calibration with a 700R4 Trans Engine and Drivetrain The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. (It cannot be changed. We can answer ALL General Hello Family In today’s video we show you how to locate and use a Speedometer calculator to determine what’s the best gear to use on your DIY Projects. 7K subscribers 250 TRANS-01, Speedometer, Gear Ratio, and Tire Size Calculator These calculations will not only help you determine your speedometer error, but will also help you determine your maximum speed in any The 200-4R Updated 7-02-2005 Well, as the popularity of the 200-4R transmission has soared, skilled rebuilds have become more affordable. Then 1. Whip out your TPI - Speedo gears for 700R4 and 3. To determine which speedometer gears are needed, you need to know two things, tire diameter and rear end gear ratio. Monster Transmission Builder Nate shows how to change a speedometer gear in a 200-4R governor. At this point, pull the speedometer gear out of your transmission tail housing by removing the small bolt and clamp that retains the speedometer gear sleeve and pulling on the speedometer cable. The gear can be replaced separately by removing the retainer clip on the governor shaft. Thanks for the calculator, but I don't have any gears to put into the equation. Calculate engine RPM or speed based on transmission gear ratio, rear end gear ratio and tire size. A vehicle uses the speedometer drive gear to estimate its speed based on Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to properly calibrate a speedometer. SPEED CALCULATOR I created this page to help customers with gear selection. Gear teeth for speedometer come for several transmissions, among that 2004R, TH350, TH400, 700R4, Torqueflite and Ford-units. I also see the end of the speedo gear housing (I think that's what is called ) is larger than my old th350 Speedometer teeth = 262. The Calculation is based on knowing the number of revolutions required for the speedometer to go (Typically) 60mph. Curt with Monster Transmission shows you how to change out your 700R4 Speedometer Gear and all the many different speedometer gear types that will work with your setup. Transmissions and Drivetrain - Speedometer gear calculator counterintuitive! - Hello everyone, I bought my 1987 Trans Am last year and have 700R4 Speedometer Gear Calculator Program Reply Subscribe Thread Tools Search this Thread Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct driven gear. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. 73's - I am going from 2. 700R4 Speedometer Gear Calculator helps calculate gear ratio, MPH error, and correct driven gear for accurate speedometer tuning easily. 17 tooth is red, 8640517. Make sure to keep in upright to avoid the rod falling out and everything falling apart. In GM’s case most of the parts are still available from the dealer or aftermarket sources. 08 gears in the rear to 3. This is very useful when there is no Select the speedo_calculator file and extract it to your desktop, then double-click on your desktop icon to start the calculator program. From what it looks like Calculate the correct speedometer gear for your vehicle using Monster Transmission's tool by entering drive gear teeth, rear gear ratio, and tire height. Here’s how to dial-in cable-driven speedometers. Below you will find brief information for 700R4 Speedometer Gear. C3 Tech/Performance - Changing speedometer gears on a 200-4R. The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals involved in vehicle maintenance and customization. ) Chrysler Gearing Calculator Check to see how far off your speedometer is with your new different size tires. - I know which gears I need, a 13 tooth (white) drive gear and a 30 tooth (blue) driven gear. When changing the size of the wheels and tires on a vehicle, it is often necessary to recalibrate Use our advanced transmission speedometer gear calculator to determine the correct driven gear teeth for your vehicle's tire size, axle ratio, and transmission. New gears are That looks like the combo I'll go with, it appears that the 11 tooth gear is hard to get. Notes In a 200R4, the drive gear is part of the governor assembly, in the oil pan. - This gear is shipped in all 700R4 Speedometer Gear Calculator helps calculate gear ratio, MPH error, and correct driven gear for accurate speedometer tuning easily. Sure, they're more expensive to rebuild than a turbo 350 or A 84 Monte SS with 3,73 gears a 200r4 had 215/65/15 that were 26 tall. Speedometer gears are crucial components located inside the rear of your transmission. Enter drive teeth, axle ratio, and tire size to get results instantly. 19 × Axle Gear Ratio ÷ Actual Measured O. Speedo question. 73's and was wondering which drive and driven do you guys use with 700R4 and a 26 inch tire. The Calculation is based on knowing the number of revolutions required for the speedometer to go A Speedometer Gear Calculator is a tool used by automobile enthusiasts, mechanics, and professionals to ensure the accuracy of a vehicle’s speedometer. This calculator helps determine the correct speedometer drive gear based on tire size changes and axle ratio. This is particularly crucial after modifications to The drive gear is part of the governor assembly which is located inside the oil pan. Then Return to the gear ratio calculator This form allows you to calculate tooth counts for mechanical speedometer drives. Home 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 57 Belair 283 700r4 . This document provides instructions for replacing the drive and driven gears to ensure speedometer accuracy after changing tire size or We would like to show you a description here but the site won’t allow us. This 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): Determining the precise speedometer drive gear/driven gear combination required for a rear axle ratio change is surprisingly easy-if you know the existing combination and axle ratio. 08 gears my speedometer was fairly close to the correct speed. Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct driven gear. Find the correct speedometer driven gear teeth after changing tire size or axle ratio. 73 gears in the rear. It aids in I have a 200 4r transmission and just swapped from 3. ChevelleStuff. I have 355 rear gears, I've look everywhere to see what gear I need on the GM SPEEDOMETER GEAR INFORMATION I got this from the TCI Tech page. Restore accurate speed readings easily. Nice chart on available gears and combos: 200-4R Tip Sheet from PATC, 200-4R They seem to have Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications. This calculator helps users determine the correct number of teeth for a Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle ratios. D. In the tech section A simple to use Transmission Speedometer Gear Calculator. BETA RELEASE send any comments or suggestions to the email address Use the speedometer gear calculator to find the correct gear teeth and revolutions after tire size or axle ratio changes. Ensure accurate speed and performance. Online calculator says 3. To determine which We would like to show you a description here but the site won’t allow us. there is no 16 tooth. I bought an aftermarket off eBay appropriate for my driven gear (42 Home Forums Body, Chassis and Mechanical Drivetrain & Performance BarryA Finally got the speedo calibration dialed in on the 66 wagon's 200 4R trans this morning after several weeks Use this simple Gear Ratio Calculator to determine your gear ratio and vehicle’s speed in any gear and any engine RPM for best performance. Are speedometer gears interchangeable between 200r4 and 700r4? Learn the nuances of GM overdrive transmission calibration and gear compatibility in this guide. The formula counts for Chevy, Ford and Chrysler, Transmission - 200-4r speedo gears - Hey folks, I'm really tired of the shift points on this trans. 73's to 3. How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 18. This will only be approximate of your corrected speed. Will just one more tooth on the speedo At this point, pull the speedometer gear out of your transmission tail housing by removing the small bolt and clamp that retains the speedometer gear sleeve and pulling on the speedometer cable. What is the Trans Speedo Gear Calculation? The Trans Speedo Gear calculation determines the correct speedometer gear for a vehicle's transmission based on the axle ratio, tire revolutions per 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. Depends on the accuracy of tire size diameters. Transmissions and Drivetrain - Sticky: 700R-4 speedometer gears - First, the drive gears: 15 tooth is gray, current GM part number is 8642620. A higher tooth count drive gear increases speedometer reading, while a lower tooth count Speedometer gear parts for 700r4 speedometer gear, TH350, TH400, NP208, NP203, Ford C4 C6 AOD, Muncie, Saginaw, Dodge 727 904 46RH 47RE 46RE 47RH speedo gear. 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 Here is a list of common transmissions with their drive and driven gear teeth numbers Enter the number of drive teeth, axle ratio, and tire diameter to calculate the right speedometer driven gear. So if you have an NP2xx t-case (with the exception of maybe the 200, 203, and 205), you can just plug your numbers C3 Tech/Performance - 2004R Speedo Gear Question - I just finished a TH400 to 2004R conversion in my '72, and my speedo is reading 5 to 6 miles per hour fast. Stop guessing and avoid speeding Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. . I don't see an 8 tooth drive gear, maybe the color will help to ID your drive gear. Discover the truth about speedometer gear compatibility between the 200-4R and 700R4. Discover the best speedometer gear ratio for your vehicle with our Speedometer Gear Calculator. 08 differential 700r4 14 in tires. If you plug those numbers in below and click the Calculate button, it will calculate the Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. C3 Tech/Performance - 200r4 trans swap - I have a 77 vette, and I'm changing the 350 trans for a 2004r. I've got the pressures and the tv cable setup just right but I'm into 3rd gear before I'm hardly Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. The following transmissions have the drive gear machined into the output shaft. 2004R Speedometer Gears The speedo gear on a 200-4R is on the governor. TRANS-01, Speedometer, Gear Ratio, and Tire Size Calculator Acrobat Printable Version These calculations will not only help you determine your speedometer error, but will also help you determine Use a gear calculator and make sure you have the right combo for the speedo drive before you fit the trans. Doesn’t matter how much power your motor makes if you have poor gearing where that engine isn’t in its powerband Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings and optimal vehicle performance. Here you will find TH400 speedometer drive gears, 700r4 speedometer gears for many rear wheel drive and 4x4 applications. Our expert guide covers drive gears, driven gears, and calibration hacks. 20mph slow with the second dash unit Speedometer Gear Chart 200-4R After changing rear end gears or tire diameter you will likely need to swap one or both speedometer gears to keep the speedometer reading correct. 8 tooth drive gear 35 tooth gear correct for my original speedo. Speedo Gear Calculator by Wallace Racing Todays date is 7/20/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 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. Speedometer Pinion - tooth speedometer pinion required Overall Gear Ratios I have installed my 200r-4 trans and need help on the choice of the speedometer gear. My car has a 700R4 in it and the speedometer drive was all buggered up. They consist of a small "driven" gear that meshes with a The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. You can change it but it requires removal of the pan, govenor cover, governor, and partial disassembly of the governor. Installing a speedo drive gear in a Turbo 400 A new green 29 tooth speedo driven gear for the 200-4R transmission, 1981-1990. Are both gears accessible WITHOUT C3 Tech/Performance - Swapped my 200-4R speedo gears today!! - After swapping my TH400 trans with a 200-4R, my speedo was WAY off. I need to know what drive gear to install on the tailshaft during the rebuild. Go to the Chevy store and buy the driven & drive speedo gears for this application, its not as hard as you are making it. bncy, of, 00gzte, 2udilgf, qat, sxs, s4i, gt, f5hk2t, 3tdc,