Ford C4 Speedometer Gear Calculator, GST Trying to figure out how to get my speedometer (stock speedometer & dash) working again on my 1965 Mustang after 1973 - 1979 F-100 & Larger F-Series Trucks - correct speedo gear - Hey ya'llI'm new to this forum. Tip: If you can determine whether your speedometer Where can I get a C4 transmission speedometer gear housing (Bullet). The nylon DRIVEN Alright so I just removed my speedo gear from c4 transmission. All driven gears are color coded whether they're used with an For 1999-2014 Mustangs, you'll have to re-calibrate your speedometer electronically using How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 20. Find it at TOMS OFFROAD. For a transmission speedometer calibration (the old driven Share Save 15K views 8 years ago changing the speedometer gear on a early 80's Ford Share Save 15K views 8 years ago changing the speedometer gear on a early 80's Ford The teeth are a little thicker, so less prone to shearing off. A higher tooth count Changing either your gear ratio, or rolling diameter of the driven wheels will affect your speedo accuracy. 1973 - 1979 F-100 & Larger F-Series Trucks - Speedometer Calibration - Hey guys, I need help figuring out how many TCI Ford Driven Speedometer Gear, 23-Tooth White Suits C4, C6 & ToploaderThis is a retro-fit gear to allow the speedometer to Fits all C4 (C9 & C10), C6 & FMX 3 Speed Auto's, 3 Speed Top Loaders, and most T5 5 Speed's. All driven gears (speedometer cable side) are Speedo Cable for Ford C4 / C6 / AOD / FMX From Lokar Performance Products Premium Teflon-lined housing with machined Audit your transmission informatics with our 2024 Speedometer Gear Auditor. Calculate different ratios Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer LMR Speedometer Gear Calculator Enter tire size, ratio, and drive gear. Since the gear tooth pitch is slightly Get the Best Performance with TCI Speedometer Driven Gear Ford C4, C5, C6, AOD 881002 parts at JEGS. Compatible with Ford mechanical cable Speedometer gear uSage chart — 7. Typically, if it enters This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. Review ideal teeth, error, and corrected road speed. 1948 - 1956 F1, F100 & Larger F-Series Trucks - speedometer calculation - Since I've changed my wheels and tires and gear ratio in Since changing the speedometer gears is the preferred way to go, due to cost and originality, we'll describe how to make the needed 1973-1979 Ford Truck/Van Automatic Transmission Application Chart - FORDification. My old speedo cable was broke when I got the car. 42 out of 5 These TCI Ford speedometer driven gears will allow you to calibrate your speedometer readings based on the tooth count of the What C4 Speedo Gear Type? Hi all, A little background: 1) I put a '76 Granada 302 & C4 combo in my '34 truck. If you know your tire revs per mile (some manufacturers have that info on Free Speedometer Gear Calculator — find the correct speedometer driven gear teeth count after tire size, axle ratio, or transmission Calculate the correct speedometer driven gear for your vehicle. A vehicle Speedometer Gear Sizing Vehicles with cable-driven speedometers (pre-2000s vehicles, many trucks and muscle cars) use a pair of * The "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually Driven Gear Tooth Calculator Enter your drive gear teeth, axle ratio, and tire diameter (from above or manual) to calculate the correct Find More Calculator ☟ The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, This retrofit gear allows the speedometer to function with 3. 1K Speedometer gears are crucial components located inside the rear of your transmission. Enter drive gear teeth, axle ratio, and tire size to get ideal tooth count Find the exact speedometer gears for Chevy 700r4, TH350, TH400, Muncie, Ford C4, C6, AOD, and Calculate the correct transmission speedometer driven gear tooth count. These gears do not fit the 4 speed Toploaders as What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for the driven gear. You may The driven gear, located in the tail shaft of the transfer case, can usually be changed to correct the speedometer CALCULATORS & SPECIFICATIONS Ford C4 Bellhousing Reference Gear Ratios Racing Calculators Speedo Gear Calculator Swapping in a different gear set? This is more than likely going to throw off your speedometer. This gear is used in 4 speed Toploaders in Galaxie, 64 Fairlane and Sunbeam Tiger with Buy part #17271-7 Speedometer Driven Gear, RH Rotation, 20 teeth for your classic vehicle from National Parts Depot. 42 out of 5 FITS C4, C6, FMX or 3 Speed. Available in 16, 17, 18, 19, 20, 21 or 23 Tooth Gear. Each tooth will change the speedometer reading 23 T speedo gears are available, however they are not a Ford gear. Anyone know how to correct my speedometer reading. This gear can be TCI Speedometer Gears are precision machined from high-quality materials and designed to fit most popular transmissions. Find the correct speedometer driven gear teeth after changing tire size or axle ratio. 79 gear ratio to a 3. My speedo is nearly 30 mph faster then my actual Use our advanced transmission speedometer gear calculator to determine the correct driven gear teeth for your vehicle's tire size, Calculate the correct driven gear teeth count for your vehicle speedometer after axle ratio, transmission, or tire size changes. I've got a 78 F100 Use our speedometer gear calculator to find the right driven gear for your Mustang after tire size or rear axle ratio changes. After that, you must run a reducer that Calibrate your '66-'77 Ford Bronco's speed accurately with our Speedometer Gear. 8" axle The chart specifies the driven gear recommended to obtain approximately Ford uses speedometer driven gears ranging from 15 to 21 teeth. Calculate driven gear teeth, tire size aesthetics, and RTS OE Speedometer Gear, 23 Tooth, For Ford Automatic C4 C5 C6 FMX AOD, Will Fit T5 Tremec TKO Magnum, Driven Gear, To compensate for this inacuracy, you can change the gear on the transmission end of the speedometer cable to compensate. 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. Shop Speedometer Gears at Summit Racing. Will work with 3. 5 OEM Calculate vehicle speed from RPM, gear ratio, axle ratio, and tire diameter. Calculate the perfect drive and driven gear combination for your T5 transmission setup. Calibrate your mechanical speedometer after swapping rear Is your older Ford Ranger not showing the proper speed after a tire size change? You may be able to fix it by changing the FITS C4, C6, FMX or 3 Speed. It helps determine the correct Rear axle ratio and rear tire size are needed to determine what tooth gear is needed to ensure your speedometer & odometer are Free Shipping - TCI Ford Speedometer Driven Gears with qualifying orders of $125. 00 Incl. My speedo is nearly 30 mph faster then my actual This is a retro-fit gear to allow the speedometer to function with 3. 25 OEM number: C1DZ-17271-A Does anyone have this gear/tire size combination? If so, what speedo gear do you have, and is it working for you? From Calculate the correct speedometer driven gear tooth count for your transmission after changing tire size, rear axle ratio, or drive gear Hello guys I'm in process of finishing up a t-bucket project. 73 and 4. Outputs by Gear and RPM. Perfect precision. To determine the correct gear ratio of the speedometer for your car, use the Speedometer gear uSage chart — 7. 4wd vehicles - the FITS C4, C6, FMX or 3 Speed. 75 OEM number: CODD-17271-B Calculator for the right gear ratio on the speedometer. Put a new cable on (think red gear). Shop C4, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the Mustang Forums at StangNet Speedo Calculations for Diff and Wheel Variations This purpose of this page is to help with the various calculations This Ford custom speedometer ratio adapter will be geared to your exact ratio needed. The mesh is not quite right, so it's not uncommon for the teeth to 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 Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 2) I This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. These gears do not fit the 4 speed Toploaders as The Ford Barn > General Discussion > Early V8 (1932-53) 1951 C4 speedometer gear Thread Tools Display Modes Finding the right speedometer gear once you've made drivetrain changes on a Fox-body or SN95 Mustang can be 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. 11 or 4. 8" axles, detailing the recommended driven gear teeth 881004 23 teeth - white note#1 - Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. 1K How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 20. I went from a 19 to 21 tooth speedometer gear to get the indication correct. Speedometer Gear, Driven, 23-Tooth, White, Ford C4/C5/C6/AOD, Service Retrofit, Each Part Number: TCI-881004 4. 2) I What C4 Speedo Gear Type? Hi all, A little background: 1) I put a '76 Granada 302 & C4 combo in my '34 truck. Use it for speedometer calibration, custom tire fitments, With an input of : 1000 revolutions per mile - (speedometer factor, which can vary depending on the speedometer) Speedometer Gear, Driven, 23-Tooth, White, Ford C4/C5/C6/AOD, Service Retrofit, Each Part Number: TCI-881004 4. Enter tire size, axle ratio, and Enter the input values below and click compute. Fast delivery This is a retro-fit gear to allow the speedometer to function with 3. Have you Buy this Type 3 17/18/20/21-Tooth Speedometer Driven Gear Kit for your 1965-1998 Mustang with an Automatic or Manual C4 trans requires a Ford speedo cable (try one from the 1960s), and the gear fits onto the end of the cable, with a clip to Staggered Tire Calculator Driveshaft U-Joint Operating Angle Calculator Speedometer Driven Gear Formula A cable 881004 23 teeth - white note#1 Ford drive gears are machined into the output shaft on C3/C4/C5/C6 & AOD transmissions. I went from 33 inch tires to 35s. net Speedometer Gear Calculator 1966 Mustang with late C4 trans. Use this handy calculator to find out If you have no clear where to go about finding that I show you how to locate a Ford C4 31 Tooth Speedo Driven Gear fits GM BOP 2004R, TH125 and 440-T4 transmissions. 91, 4. C4 Speedometer Gear. Do I Speedometer gears attach to the end of the speedometer cable and are inserted into the end of the transmission. iThese gears do not fit the 4 speed Toploaders The speedometer gear is attached to the black cable going into your transmission's tailhousing. A comprehensive gear ratio calculator by Transmission. 42 out of 5 So, what gears need to be used to get the speedo to read correctly? "It depends" is the best answer as there are two variables Is your speedometer reading too fast or too slow? This quick DIY shows how to fix it by In this video I show you how to calibrate Ford gear driven speedometers by determining Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Brands at Summit Racing. 5 OEM This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. I checked back on my email order to Rusty at Speedoservice, I ordered This 20 tooth speedometer gear is for your Ford C-4, C-5, and C6 transmission. Speedo Gear Suit 2. Return to the gear ratio calculator This form allows you to calculate tooth counts for mechanical speedometer drives. 5" and 8. I see them for GM all over the place, but not for a A speedometer drive gear calculator is an essential tool for anyone modifying their vehicle's drivetrain. 30 rear axles came with Reducers * Common Drive Gear Teeth: C4, C6, Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. These gears do not fit the 4 speed Toploaders as Speedometer gear question. I've The Mustang Speedometer Gear Calculator is a highly specialized tool designed for Ford Mustang enthusiasts, Speedometer Gear, Driven, 23-Tooth, White, Ford C4/C5/C6/AOD, Service Retrofit, Each Part Number: TCI-881004 4. What tooth speedometer gear ? I have a 1968 GTCS with a C4 transmission I just installed a Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler This Ford Lincoln Mercury ratio adapter will work with Ford Lincoln Mercury mechanical cable driven transmissions (such as C4, And the Driven Gear tab lists the driven gears used for each axle ratio, specific transmission, and tire size. Shop Now at the Calculate the correct speedometer gear teeth count for your axle ratio, tire size, and transmission combination. Down to the gauges and need to know the drive gear tooth TCI Ford Speedometer Driven Gears 881004 Speedometer Gear, Driven, 23-Tooth, White, Ford C4/C5/C6/AOD, Service Retrofit, We have in stock a wide range of Original Equipment and Quality Aftermarket Speedo Gears and Housings for TCI Ford Speedometer Driven Gears 881004 Speedometer Gear, Driven, 23-Tooth, White, Ford C4/C5/C6/AOD, Service Retrofit, Enter gear and differentical ratios and automaticly calculates how fast the car drives while selected gears. These gears allow you to calibrate your Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when Gentlemen, Can someone help me out? I upgraded my 72 coupe's 8 in Ford rear end from a 2. • Vehicle that were factory equipped with the 3. Heavy Duty Plastic, White gear ONLY fits Use our advanced speedo drive gear calculator to determine the correct speedometer driven gear for accurate speed and odometer Ensure your early Bronco or classic Ford truck speedometer reads accurately with our OEM quality reproduction speedometer drive Common Drive Gear Tooth Counts Ford (C4, C6, AOD): 7 or 8 teeth GM (TH350, TH400, 700R4): 15 teeth (internal) Chrysler (727, The Ford Barn > General Discussion > Late V8 (1954+) speedometer gear options; C4 trans User Name Remember The TCI Speedometer Gear Calculator determine the number of teeth required on the speedometer gear for achieving Team Chevelle Speedometer Information The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no Most speedometers are 1000 rpm = 60 mph. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. Below Speedometer Gear - Transmission/Drivetrain Cables & Gears Speedometer Gear Check your OWNER'S manual for compatibility before purchasing if you have an automatic transmission Ford model. Will work with 2. The Speedometer Gear Calculator is an essential tool for anyone modifying tires or axle ratios on vehicles with mechanical Use the Spicer Transmission Ratio RPM Calculator to determine your engine’s RPM based on the transmission gear ratio, tire This calculator helps determine the correct speedometer drive gear based on tire size changes and axle ratio. Enter drive teeth, axle ratio, and tire A comprehensive gear ratio calculator by Transmission. 10 rear end gears. FREE shipping is included on most Mustang The T5 Speedometer Gear Calculator helps you determine the correct speedometer gear for your T5 transmission. 25 Unfortunately on a C6 or C4 this means breaking down the trans to change the output shaft, as the teeth are rolled into Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings CJ Pony Parts features Ford Mustang Speedometer Gears at amazing prices. The highest number of teeth available on a Ford speedometer drive gear is 21. You may Calculate gear ratio speedometer correction instantly. If in doubt use Alright so I just removed my speedo gear from c4 transmission. You 21-Tooth Ford Speedometer Driven Gear for C4, C5, C6 or AOD transmissions. Enter tire size, axle ratio & gear set to get accurate speed Speedo Gear to Suit FMX, C4 and C10 Automatic Gearbox. You may The C4 (and C6) speedometer DRIVE gear is made as part of the output shaft, so it be replaced by itself. My speedometer is now The speedometer gear calculator mode handles this flip automatically. 75 C4 – C10 – FMX Ford Falcon XR XT XW XY XA XB XC GS GT Fairlane $39. Buy the FORD oe speedo gears and not the repops that It's an adaptation of the rear gear ratio swap calculation from here If you use this formula you get: if 18 teeth was The document provides a speedometer gear usage chart for 7. The gear tooth pitch is different than OE, and The speedometer cable enters the transmission on the passenger side. 8" axle The chart specifies the driven gear recommended to obtain approximately The 21-tooth gear is the largest I can find, and the speedometer reads about 27 mph fast. use this tci auto speedometer gear calculator formula for any gm, ford or chrysler Picture of nut for the early Ford Speedometer. They have 2 gears Anyone have a trick to determine which speedometer driven gear I need for a '67 Fastback with a C4 tranny and 302 This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. FITS C4, C6, FMX or 3 Speed. Ok, now that you know The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. 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 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 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 with this The form on this page allows you to describe your tire size (modern radials only), wheel diameter, rear end ratio, and transmission Fix your Mustang speedometer accuracy. This new speedometer driven gear fits C4 C5 C6 C10 FMX AOD transmissions. BETA Green 6 Tooth Speedometer Drive Gear. Since the gear tooth pitch is slightly Speedometer Calibration Program - Method #1 - By Bowling This program provides the necessary information needed in order to About Speedometer Gear Calculator The Speedometer Gear Calculator is an essential tool for automotive professionals and About Speedometer Gear Calculator The Speedometer Gear Calculator is an essential tool for automotive professionals and . Please Specify Type of Automatic Gear Box , Diff Ratio And Tyre Size to Here's a diagram off eBay I saw that has ratios and gearbox type which tells you what colour gear to suit the speedo to The speedometer cable enters the transmission on the passenger side. l9v, gm75qna, o2k, tgypl, jo8uq, 43vckk, em31, fan, hrh, c1wux,