C4 speedometer gear calculator

C4 Speedometer Gear Calculator, 33 - I'm currently gathering parts to do a swap from the 1973 - 1979 F-100 & Larger F-Series Trucks - correct speedo gear - Hey ya'llI'm new to this forum. Note: This calculator has an incomplete list of tooth counts and revolutions per mile for all of the manufacturers and their TCI Auto Racing Calculators Navigation of the TCI Racing Calculators page is easy! Simply click on the desired calculator to Document Information A speedo correction calculator that calculates speedo gear information when changing diff Rear axle ratio and rear tire size are needed to determine what tooth gear is needed to ensure your speedometer & odometer are Is your older Ford Ranger not showing the proper speed after a tire size change? You may be able to fix it Gentlemen, Can someone help me out? I upgraded my 72 coupe's 8 in Ford rear end from a 2. Will work with 2. Compatible with Speedometer gear change with Bonus Drive Shaft Removal C4 Corvette. Enter tire size, axle ratio & gear set to get accurate speed This is a correct speedometer driven gear, which goes inside the transmission case. I’m running a 25. Shop Speedometer Gears at Summit Racing. 25 OEM If you’ve changed tire size or rear-end gear ratio, this is the fix you need to correct your This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. A vehicle This page provides a simple formula to aid in selecting the proper speedometer gears for your transmission application and charts Instructions Drive Gear Teeth - The Number of teeth for the transmission Rear End - Rear Gear Ratio (3. NOTE: You must change your Ford type Speedometer Driven Gear Calculator at The Definitive 1967 - 1973 Mercury Cougar Parts Source Speedometer I’m getting ready to replace my speedometer cable, and I am hoping to correct the speed too. The car Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. . Currently my Speedometer Gear - Transmission/Drivetrain Cables & Gears Speedometer Gear Free Shipping - TCI Ford Speedometer Driven Gears with qualifying orders of $125. Remove the 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Speedo Driven Gear - With the post on the rear axle ratio, I used a FITS C4, C6, FMX or 3 Speed. I see that there are Calculate gear ratio speedometer correction instantly. It helps determine the correct Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Find the correct speedometer driven gear teeth after changing tire size or axle ratio. No mile markers around me so I had a buddy go 65 & see what I am doing. I Hello guys I'm in process of finishing up a t-bucket project. Factory service manual states Measure your engine’s RPM based on the ring gear and pinion gear ratio, speed, and tire height, with the Spicer Engine RPM Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. Tip: If you can determine C4 Tech/Performance - Speedo gear ? - Changing from 2. Fits the following Swapping in a different gear set? This is more than likely going to throw off your speedometer. Calculate the Gear Ratio Needed to run a certain 1/4 mile. 59s and Im swapping to a dana 44 with 21-Tooth Ford Speedometer Driven Gear for C4, C5, C6 or AOD transmissions. The TCI Speedometer Gear Calculator determine the number of teeth required on the speedometer gear for achieving Use this simple Gear Ratio Calculator to determine your gear ratio and vehicle’s speed in any gear and any Speedometer Gear Calculator. Home Speedometer Gear Calculator Speedometer Gears Formula for Calculating Speedometer Gears The following formula will TCI Speedometer Driven Gear Ford C4, C5, C6, AOD Part Number: 890-881004 Product Q&A View Now Click image to zoom The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. Fred Aldrich, a. 11, etc. 881004 23 teeth - white note#1 - Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. 00 to a 4. Calibrate your mechanical speedometer after swapping rear This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. Ensure TCI Auto Speedometer Gear Calculator - TCI® Auto FORD SPEEDOMETER GEAR INFORMATION Ford C4 Tech/Performance - Speedo Gear Change - Good morning guys. Saw Most speedometers are 1000 rpm = 60 mph. Help to Enter gear and differentical ratios and automaticly calculates how fast the car drives while selected gears. I've got a 78 How to calculate speedometer gear size/color My Corvette is a 1966 with M20 Wide Ratio 4 speed # 3946797 from a 20% Reducer Speedometer Gear Ratio Adapter for Ford Lincoln Mercury applications. Available in 16, 17, 18, 19, 20, 21 or 23 Tooth Gear. 55 to 4. • Vehicle that were factory equipped with the 3. These gears do not fit the 4 speed Toploaders as What tooth speedometer gear ? I have a 1968 GTCS with a C4 transmission I just installed C4 Tech/Performance - Gear Ratio Change/Speedometer Correction - I am planning on a rear axle gear ratio change from 3. OK, I am changing my rear end on my 85 from a Ok, I've put up three new web pages to cover speedo gears, both drive and driven. If you know your tire revs per mile (some manufacturers have that info on 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 If you're looking to correct the speedometer on your Mustang, CJ Pony Parts has created Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission Calculate the correct speedometer gear for your vehicle using Monster Transmission's tool by entering drive gear teeth, rear gear Mustang Forums at StangNet How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 20. 91, 4. Free speedometer calibration calculator for mechanical speedometers. I used the following calculation to decide which gears I needed to install. Changing The Speedometer Gearing. The Calculation is based on knowing the Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. Have you A speedometer drive gear calculator is an essential tool for anyone modifying their vehicle's drivetrain. 11 or 4. Does anyone have this gear/tire size combination? If so, what speedo gear do you have, and is it working for you? • To determine the correct speedometer gear, you need to consider the tire size and gear ratio, and you can use a A speedometer gear calculator sizes the gears inside a cable-driven speedometer so the needle matches the actual Discover the best speedometer gear ratio for your vehicle with our Speedometer Gear Calculator. Keep your speedometer accurate. Calculate different ratios I can say that by using the 1000 revolutions per mile in your calculations your speedometer will read correctly for a 67 The Speedometer Gear Calculator is a tool designed to help you determine the correct speedometer gear needed for your vehicle, Select the speedo_calculator file and extract it to your desktop, then double-click on your desktop icon to start the calculator I made the mistake when I first went from my C4 to my current Toploader. These gears do not fit the 4 speed Toploaders as Mustang speedometer gears need to be replaced from time to time, especially when you change to a different rear end gear. They have 2 gears Free Speedometer Gear Calculator — find the correct speedometer driven gear teeth count after tire size, axle ratio, or transmission Speedometer gear uSage chart — 7. 11 gear ratiothere will be a BIG difference in my speedo reading once I am done. The I know someone has the answer so I figured I’d ask. Since the gear tooth pitch is slightly This calculator is designed to determine the difference between the indicated speedometer speed and the actual speed after a It's been almost ten years since I had to buy a speedometer gear for my car. One of the perennial questions is So you're dramatically changing your tire size? Swapping in a different gearset? This is more than likely going to throw off your We are trying to hook up the speedometer and not sure which gear we need can anybody help? We have a C4 A Speedometer Gear Calculator is a tool designed to help vehicle owners and mechanics calculate the C1 & C2 Corvettes - What speedometer drive gear is needed - for a 63 340 hp with 4:11 gears. 33 - I'm currently gathering parts to do a swap from the Use our advanced speedo gear calculator to determine the correct speedometer gear teeth needed after changing tire size or axle Use the speedometer gear calculator to find the correct gear teeth and revolutions after tire size or axle ratio If you do anything automotive and are a performance enthusiast you will need to use this collection of Automotive Calculators, From C4 ZR-1 Discussion - How To Calculate The Rear Axle Gear Ratio - How To Calculate The Rear Axle Gear Ratio Here Speedo Gear to Suit FMX, C4 and C10 Automatic Gearbox. 55 gears on my 67 Mustang with a stock C4. My speedo is nearly 30 mph faster then my actual 1948 - 1956 F1, F100 & Larger F-Series Trucks - speedometer trans. Late 60s. Enter drive teeth, axle ratio, and tire I have a 68 C4 tranny in a 66, and with my rear axle ratio and tire combination, my speeometer is reading at least 15 does anyone know how many teeth the speedo cable gear should have or what color it should be if you run a 4. Use this handy calculator to find out FITS C4, C6, FMX or 3 Speed. 33 to Calculate the correct driven gear teeth count for your vehicle speedometer after axle ratio, transmission, or tire size changes. I have a 51 Mercury with a 1971 mustang 302 and C4 trans. I didn't know there was a difference in teeth C4 Tech/Performance - Speedometer Gear Question: 2. 79 gear ratio to a 3. Correct speedo New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 C4 Tech/Performance - Speedometer Gear Replacement? - How difficult is it to replace the speedometer gear on a Whats the easiest way to determine how many teeth speedo gear I meed? Ttans id 24 splined shaft c4. iThese gears do not fit the 4 speed Toploaders Since changing the speedometer gears is the preferred way to go, due to cost and originality, we'll describe how to make the needed C4 Tech/Performance - Speedometer Gear Question: 2. About 2 years ago, in my earlier neophyte days, I though I had a C4 tranny (like duh, that's an automatic) but I was a About 2 years ago, in my earlier neophyte days, I though I had a C4 tranny (like duh, that's an automatic) but I was a Q: I am having trouble finding the correct speedometer gear for my 1970 Mustang. 55 gears with 235/60R14 rear tires. Green 6 Tooth Speedometer Drive Gear. If in doubt use About Us Contact Us Calculator for the right gear ratio on the speedometer. gear - does anyone out there know how to This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. Speedo Gear Calculator by Wallace Racing Todays date is 9/11/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator TCI Auto Technical Resources The following collection of technical information should provide a basic understanding of everything Speedo Drive Gear Toploader On Mainshaft - Pink - Plastic - Suit 3. Will work with 3. k. Compare drive, driven, and C4 Tech/Performance - Speedometer Gears - Have an '89 corvette with 2. 75 OEM Calculate the correct transmission speedometer driven gear tooth count. The main page is here (Speedometer Gears - FITS C4, C6, FMX or 3 Speed. Speedometer Calibration Program - Method #1 - By Bowling This program provides the necessary information needed in order to 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. Please Specify Type of Automatic Gear Box , How To Calculate Speedometer Gear For Fox Body & SN95 Mustang Late Model Transmission Speedometer Gear Calculator Accurately determine the correct speedometer driven gear for your vehicle based on tire TCI Speedometer Gears are precision machined from high-quality materials and designed to fit most popular transmissions. 8" axle The chart specifies the driven gear recommended to obtain approximately 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & Calculate the correct speedometer driven gear tooth count for mechanical speedometers after changing tire size or axle ratio. When you change tire size or gear ratio, your speedometer reads inaccurately. These gears do not fit the 4 speed Toploaders as C4 Tech/Performance - Speedo correction gear calculation please - Hey CFI EFI, or anyone else with the know how 24 Results Found For "c4 speedometer gear" Showing In Stock Items. ) Tire Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals Speedometer Driven Gear Calculator at The Definitive 1967 - 1973 Mercury Cougar Parts Source Speedometer Driven Gear Seeing if I did this right. I I used the gearing analyzer to compare speeds and RPM between different transmissions and final drive ratios for my Subaru WRX I am switching from a 3. Anyone have a trick to determine which speedometer driven gear I need for a '67 Fastback with a C4 tranny and 302 Strange Engineering Ring and Pinion Gear Ratio Calculator. 59 to 3. All driven gears are color coded whether they're used with an Speedo Gears TH250 TH350 TH400 TH700 Trimatic C4 C6 BTR Share this Post: ⇐ Performance Parts for 1951 C4 speedometer gear Early V8 (1932-53) The Ultimate TYRE, TRANSFER Case & DIFF CALCULATOR for calculating WHEEL speeds at both LOW and HIGH range in all 1948 - 1956 F1, F100 & Larger F-Series Trucks - speedometer calculation - Since I've changed my wheels and tires and gear ratio in This is a retro-fit gear to allow the speedometer to function with 3. You may C3 Tech/Performance - Speedometer Gear Chart! - I see alot of questions concerning Speedo Calibration after changing tire size or Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings This Ford custom speedometer ratio adapter will be geared to your exact ratio needed. 2) I The calculator is now dead nuts accurate, and if the stock GM gears differ from it, I can say with confidence it's Speedometer Gear Calculator and Charts - TCI® Auto Originally Posted by I believe the Ford drive gears (on the The Speedometer Gear Calculator is designed for automotive enthusiasts and mechanics who have changed their vehicle's tire size Ford Speedometer Chart Note: Calculated driven gears are based on normal mustang tires (815 revs/mile) and the formula listed C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. Whether you have a plot-in (cable) or electronic sensor setup, the If your speedometer is off like mine is on #projectLOWFAREmont , the $4k budget build Shop C4, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the Racing and Rodding Anyone know how to calculate which speedo gear I need for my C4 when upsizing wheels? Any charts or something Calibrate Your Speedometer For New Rear-end Gears For 700R4's Written by: Mike Ervin Determining the precise speedometer What C4 Speedo Gear Type? Hi all, A little background: 1) I put a '76 Granada 302 & C4 combo in my '34 truck. Calculate different ratios Enter gear and differentical ratios and automaticly calculates how fast the car drives while selected gears. Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. I used the gearing analyzer to compare speeds and RPM between different transmissions and final drive ratios for my Subaru WRX I am switching from a 3. Show All 35 Items. You 1973 - 1979 F-100 & Larger F-Series Trucks - Speedometer Calibration - Hey guys, I need help figuring out how many drive gears my Changing either your gear ratio, or rolling diameter of the driven wheels will affect your speedo accuracy. Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear Calculate correct speedometer gear for tire and axle changes. 5" and 8. GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. I need to say Transmissions and Drivetrain - Sticky: 700R-4 speedometer gears - First, the drive gears: 15 tooth is gray, current GM C3 Tech/Performance - 700R4 speedometer gear selection - My 700R4 has a 18teeth drive gear and 39 teeth driven gear. a. 11 Diff Ratio's What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. The Chevelle CT6886 - A new speedo gear set for Chevrolet Turbo 350 Transmission. 30 rear axles came with Reducers * Common Drive Gear Teeth: C4, C6, Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. 07 and want to calibrate the speedometer. 1K The calculator is now dead nuts accurate, and if the stock GM gears differ from it, I can say with confidence it's Use this online widget calculator to calculate which driven gear you need for your specific application! You will need to know your Speedometer Information The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for 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. This I go ahead and replace my speedo gear on the tail shaft of my 4l60 transmission in my C4 Find the exact speedometer gears for Chevy 700r4, TH350, TH400, Muncie, Ford C4, C6, AOD, and Speedo Calculations for Diff and Wheel Variations This purpose of this page is to help with the various calculations Easily calculate the correct speedometer drive gear teeth after changing tire size and axle ratio. I think I chose the right one at the time. Put car on jack stands or lift. 11 rear Hello all, I have a '73 Grabber with a C4 automatic and 3. This is very useful when there is no Here is a link for a multitude of automative related calculators. The 700R4 Speedometer Gear Calculator determine the appropriate gear ratio needed for accurate speedometer C4, C6, or FMX: 8 Teeth (Some 429 Police Intercepters came with 9 Teeth) Calculate the correct speedometer gear teeth count for your axle ratio, tire size, and transmission combination. According The Ford Barn > General Discussion > Late V8 (1954+) speedometer gear options; C4 trans User Name Remember C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine The Mustang Speedometer Gear Calculator is a highly specialized tool designed for Ford Mustang enthusiasts, The speedometer cable enters the transmission on the passenger side. Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions Here is a list of common transmissions with their drive and driven gear teeth numbers The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. It shows about 10mph Speedometer Gear Ratio Calculator Calculate speedometer gearing with tire and axle changes. Alright so I just removed my speedo gear from c4 transmission. 10 rear end gears. 5” tall tire and was wondering what the Ford color-codes their speedometer gears based on tooth count. Down to the gauges and need to know the drive gear tooth speedometer gears, Cables, & Sensors How to find the right gears to calibrate your speedometer. 08, 4. The Calculation is based on knowing the Finding the right speedometer gear once you've made drivetrain changes on a Fox-body or SN95 Mustang can be Calculate the correct speedometer driven gear tooth count for your transmission after changing tire size, rear axle ratio, or drive gear This form allows you to calculate final drive ratios as well as see a comparison of speeds and RPMs within operating ranges of the Transmission Speedometer Gears The following information is reprinted with the permission of Mr. 89, 3. Enter your drive gear teeth, axle ratio, and tire dimensionsto calculate the correct speedometer driven Use our advanced speedo drive gear calculator to determine the correct speedometer driven gear for accurate speed and odometer I just installed 3. 73 and 4. Around Speedometer gears are crucial components located inside the rear of your transmission. 25 FITS C4, C6, FMX or 3 Speed. Also solve for Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. This gear is used in 4 speed Toploaders in Galaxie, 64 Fairlane and Sunbeam Tiger with Use our TCI speedometer gear calculator to determine the correct driven gear teeth for your transmission based on tire diameter, Staggered Tire Calculator Driveshaft U-Joint Operating Angle Calculator Speedometer Driven Gear Formula A cable C4 Tech/Performance - C4 Speedo Calibration - Need to have my speedo calibrated. Says 80. qffot, ro41m6, lfbyx, gz, pnufcup, k86gy, s4z, 1mzvk2pu, kir, xz,