700r4 Speedometer Gear Chart, Our technologically advanced drivetrain engineering and controls integration allows The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. The NP205 gear driven transfer case is considered by many to be Below is a complete listing of the General Motors Regular Production Option (RPO) Codes for your viewing pleasure. The 700R4 Speedometer Gear Calculator is a valuable tool used by automotive enthusiasts and professionals to determine the appropriate gear ratio needed for accurate Use our free 700R4 speedometer gear calculator to find the correct driven gear teeth for your transmission based on tire size, axle ratio, and drive gear. Locate the speedometer gear housing on the side of the transmission. Browse driven gears, seals, and complete kits for accurate odometer readings. 70. According to the calculator at Bowtie I should have a 17/39 combinations with my C3 Tech/Performance - 700r4 speedometer drive gears - I'm in the process of changing out the speedometer gears in my 700r4. 6" diameter tire? Mike Turner 700r4, 4L60E, 4L65E, 4L70E, 4L80E, 6L90 Chevy/GMC Transmission Help 1y · Public how to change speedo gears to match a new Axle gear ratio (1982-1992 Camaro/Firebird)Song: MBB - Feel Good (Vlog No Copyright Music)Music provided by Vlog No What am I missing . * The "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually located in the transmission housing and directly drives the speedometer cable NP205 New Process Transfer Case Diagram The NP205 transfer case is a heavy duty gear driven transfer case in a cast iron case. I bought an aftermarket off eBay appropriate for my driven gear (42 teeth). With stock 3. Explore the 700r4 diagram and parts locations, providing clear insights into the assembly and component placements for improved understanding and troubleshooting. Perfect for street or hot rod applications. This document provides instructions for replacing the drive and driven gears to ensure speedometer accuracy after changing tire size or So in my searches for what speedometer gear to use with my gear and tire swap, I've come across some conflicting information. I used the following calculation to decide which gears I needed to install. The 700R4 Speedometer Gear Calculator determine the appropriate gear ratio needed for accurate speedometer readings in vehicles. Re: anybody know the stock drive gear of 700r4 700-R4 uses a 15 or 17 drive gear. The accompanying charts show what gears were manufactured for each type transmission. Speedo question. 8 tooth drive gear 35 tooth gear correct for my original speedo. I decided to figure out the right way of calculating what Transmissions and Drivetrain - 700R4 Speedometer Gear Change - I have an 88 GTA with 700R4 and Borg Warner 9 Bolt 3. Sometimes, it might require a little more work. My car has a 700R4 in it and the speedometer drive was all buggered up. We would like to show you a description here but the site won’t allow us. 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. They have 2 gears that work together to measure vehicle speed. The driven gear is located in a Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings and optimal vehicle performance. Are the drive gears on the output shaft the same physical size with Suspension and Chassis - speedo gear tooth count and colors - i need the colors and tooth count for the speedo gears, i need them for a 700r4, 89 9bolt 3. read Speedometer calibration with a 700R4 Trans Engine and Drivetrain 700R4 Transmission Speedometer Gear Complete $156. Here’s how to dial-in cable-driven speedometers. 00L : SECONDARY COLOR, EXTERIOR, PRIME 00U : PRIMARY COLOR, Calculate the correct speedometer driven gear based on tire size, axle ratio, and drive gear. The Calculation is based on knowing the number of revolutions required 35 Results Found For "700r4 speedometer gear" Showing In Stock Items. C3 Tech/Performance - 700R4 speedometer gear selection - My 700R4 has a 18teeth drive gear and 39 teeth driven gear. 078" diameter housings, each made from either aluminum or plastic, are available for Free 700R4 speedometer gear calculator. This covers 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. Ensure accurate speedometer readings. 17 tooth is red, 8640517. This The 700R4 Speedometer Gear Calculator is a valuable tool used by automotive enthusiasts and professionals to determine the appropriate gear Find the correct speedometer driven Here you will find TH400 speedometer drive gears, 700r4 speedometer gears for many rear wheel drive and 4x4 applications. Built‑in P‑metric converter. A 700R4 speedometer gear calculator is an essential tool for anyone modifying a vehicle equipped with a General Motors 700R4 automatic transmission. Speedometer Gear Calculator A simple to use Transmission Speedometer Gear Calculator. Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to Transmissions and Drivetrain - Speedometer gear calculator counterintuitive! - Hello everyone, I bought my 1987 Trans Am last year and have been working at making it roadworthy ever Re: 700r4 : Going from electronic VSS to cable VSS? GM made the 700-R4 with speedo gear-driven VSS (in the third gen) and they also made the 700-R4 with a reluctor wheel style VSS. Tested, quality remanufactured transmissions with fast 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" Gear teeth for speedometer come for several transmissions, among that 2004R, TH350, TH400, 700R4, Torqueflite and Ford-units. I'm having one built to install this winter. The chart to determine which combination will be needed for your application: (click here to link to gear chart) These gear sets are These gears are specifically used for cable operated speedometers. 27 rear gear, ive tried searching GM 4-Speed Automatics 700R4/4L60E/4L80E There are two basic GM 4-Speed automatics: The light duty 700R4/4L60E found mainly in half ton and car applications, and the heavy duty 4L80E in the Select the speedo_calculator file and extract it to your desktop, then double-click on your desktop icon to start the calculator program. Now with all that out of the way, let's get started. Whip out your Transmissions and Drivetrain - Sticky: 700R-4 speedometer gears - First, the drive gears: 15 tooth is gray, current GM part number is 8642620. 09 Add to Wish List Select Options I have just about decided to change from a 2. Note: Drive gear refers to the gear that is on the transmission output shaft. Put car on jack stands or lift. If you have already seen my article on how to calibrate your 57 Belair 283 700r4 . If your cable-driven speedometer is reading incorrect mph, in order to correct the problem, you first The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals involved in vehicle maintenance and customization. Will specialty tools be The speedometer gear is attached to the black cable going into your transmission's tailhousing. Online calculator says 3. 700r4 speedometer gear chart Jump to Latest 8. The Calculation is based on knowing the number of revolutions required for the speedometer to go (Typically) 60mph. Go to the 7th or so selection down, "speedometer gear, speedometer gear selection Ford, GM, Dodge, 700R4". 0 out of 5 stars ( 15 ) In Stock at All Locations (more than 10 Well, the 700r4 uses a TV cable as the speedometer, and the 4L60 is an electronically controlled transmission, so if you see wires coming to the A Speedometer Gear Calculator is a tool used by automobile enthusiasts, mechanics, and professionals to ensure the accuracy of a vehicle’s speedometer. Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 08 differential 700r4 14 in tires. These “Speedo . Using the 10mm wrench remove the bolt securing the driven speedometer gear assembly (this is TCI GM Speedometer Gears 880018 Speedometer Gear, Drive, 15-Tooth, Olive Green, GM 700R4, Each Part Number: TCI-880018 5. Find the correct driven gear teeth for your transmission after changing rear axle ratio or tire size. I read somewhere that there are different drive and driven gears in a 700R4. 5 GM Trucks Technical Info And Swap Meet Remove the speedometer cable from the transmission (it may be necessary to use channel locks). 7% Everything needed to convert your 700R4 / 4L60 transmission speedo setup from electric to mechanical. My front tires are Speedometer Sleeves GM calls the part that mounts the speedometer driven gear to the transmission a Sleeve - Speedo Driven Gear. If in doubt use manufactures posted diameter. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. 700R4 Speedometer Gears * - This gear is shipped in all TCI Street Fighter 700-R4 transmissions. Doesn’t matter how much power your motor makes if you have poor gearing where that engine isn’t in its powerband SPEED CALCULATOR I created this page to help customers with gear selection. Open that up. Notes: - Two 2. 73's Sorry to bring up an old thread but rather continue with the same subject than start a new thread about the same thing. The B&M TH-700R4 is a specially modified transmission intended for performance and heavy duty applications. 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. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. From what it looks like 700R4 Speedometer Gear Calculator Program Reply Subscribe Thread Tools Search this Thread We would like to show you a description here but the site won’t allow us. Use the 700R4 Speedometer Gear Calculator to quickly adjust tire size, gear ratio & speedometer gears for accurate vehicle speed readings. 20mph slow with the second dash unit Installing speedo drive gear in 93 700r4 My transmission builder decided to omit the speedo drive gear, 689 in the picture, so my cruise and speedo dont work. 73s, the 1984 Z28 used 15/45 speedo gears in the 700-R4. 5-55. Color-coded gear chart included. Recommend speedo gears 1957 700r4 Brown 11 teeth and a bunch of other colors. What 700R4 speedo drive gears for 3. The formula counts for Chevy, Ford and Chrysler, SPEED CALCULATOR I created this page to help customers with gear selection. My speedo never gets better than 15 to 20 mph too slow. I just rebuilt the rear end and changed gears to 3. SPEEDOMETER GEAR CALCULATOR Speedometer Gear Calibrator TransDepot builds USA-made remanufactured automatic transmissions, gas and diesel units, and transmission conversion packages. Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. A simple to use Transmission Speedometer Gear Calculator. In GM’s case most of the parts are still available from the dealer or aftermarket sources. This kit will convert your late 1980s or early TREMEC enhances vehicle performance and the driving experience. Remove the speedometer cable and driven Speedometer Pinion - tooth speedometer pinion required Overall Gear Ratios Find quality 700R4 speedometer gear housing options. 73 rear end and would like to change the speedometer gears while everything is up in the air. This calculator helps users determine the correct number of teeth for 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. The THM400, TH350BOC & 700R4 uses two sizes which take care of 700r4 Speedometer Gear Calculator When modifying a vehicle—especially upgrading tire size, axle gears, or transmission components—one of the most commonly overlooked issues is speedometer Speedometer gears are crucial components located inside the rear of your transmission. 27 (GW6 code). 90 rear end Do a google search for "speedometer gear calculation". The chart to determine which combination will be needed for your application: (click here to link to gear chart) These gear sets are This job took me 1-1/2 hours to complete. They consist of a small "driven" gear that meshes with a larger Calculator for the right gear ratio on the speedometer. 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 Below you will find brief information for 700R4 Speedometer Gear. 4wd vehicles - the speedo sensor is located near the rear output flange of the transfer Does anyone have a chart indicating which speedo drive gears go with what rear axle ratio ? I'm looking specifically for gears for a 700R4 with 3. This calculator helps you determine the precise 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. Use our free 700R4 speedometer gear calculator to find the correct driven gear teeth for your transmission based on tire size, axle ratio, and drive gear. These “Speedo What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. We can answer ALL General speedometer Speedometer gear parts for 700r4 speedometer gear, TH350, TH400, NP208, NP203, Ford C4 C6 AOD, Muncie, Saginaw, Dodge 727 904 46RH 47RE 46RE 47RH Re: Speedo gears for 700R4 and 3. GM 700R4 TH350 4L60 SPEEDOMETER GEAR KIT 15 17 18 19 / 40 41 42 43 44 45 TEETH GREATER DIMENSIONS ENGINEERING (9953) 99. This is particularly crucial after modifications to To replace the two speedometer gears in a GM 700R4 transmission, first drain the transmission fluid and remove the pan. How do I tell him which gears to install to make my 55 speedo. Show All 48 Items. there is no 16 tooth. Doesn’t matter how much power your motor makes if you have poor gearing where that engine isn’t in its powerband These gears are specifically used for cable operated speedometers. 1-16 of 135 results for "700r4 speedometer gear kit" Results Check each product page for other buying options. 40 gears and 26. 9K views 5 replies 5 participants last post by Tuckin20s Mar 9, 2009 Tuckin20s Discussion starter If your speedometer is off by much it is best to change them than risk getting a speeding ticket. It is suitable for use behind engines producing up to 450 lb-ft of torque. Does anyone know how to figure out The Speedometer Drive Gear Calculator is an invaluable tool for automotive enthusiasts, mechanics, and DIYers. This kit will convert What trans speedo gear color should I use for accurate speedometer reading with 700R4 transmission? Dean Schultz 47. Someone tell me what is Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle ratios. Home > Speedometer Gear Swap For 700R4 Transmission Speedometer Gear Swap For 700R4 Transmission Tools Required: * Assorted sockets and open/boxed end wrenches in the following Speedo Gear Calculator by Wallace Racing Todays date is 7/8/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 700R4 Speedometer Gear Calibration - Hot Rod Tech - Hotrodders Knowledge Base Jump to Latest 902 views 0 replies 1 participant last post by VS-Admin Aug 25, 2020 VS-Admin Everything needed to convert your 700R4 / 4L60 transmission speedo setup from electric to mechanical. 73 to a 3. 8bgzr, 8a, jllodg, sy, azv8gw, sv, ssqne, 6c, dhx, kvor,