Gm 700r4 Speedometer Gear Chart, * - This gear is shipped in all TCI Street Fighter 700-R4 transmissions.

Gm 700r4 Speedometer Gear Chart, These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer. They are marked with the driven gear tooth numbers they will accept. 1 percent of indicated speed (2. This calculator helps you determine the correct number of teeth for the plastic "driven gear" that installs into the transmission's tail shaft. Aug 30, 2010 · Re: anybody know the stock drive gear of 700r4 700-R4 uses a 15 or 17 drive gear. 73 ring and pinion. A 700R4 speedometer gear calculator is an essential tool for anyone modifying their vehicle's drivetrain, particularly those equipped with a General Motors 700R4 automatic transmission. Dec 5, 2016 · Speedometer teeth = 262. 731). Ensure accurate speed readings and odometer accuracy. The THM400, TH350BOC & 700R4 uses two sizes which take care of the different diameters of the various driven gears. Fits A833 4-speeds, 904 and 727 torqueflites, and most applications using long shaft speedometer gears. . Use the Tire Height 700R4 Speedometer Gears * - This gear is shipped in all TCI Street Fighter 700-R4 transmissions. 73 = . This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line! Popular Transmission Speedometer Gear Tooth Counts Transmission TH350 (Chevy) TH350 (BOP) TH400 200-4R 700R4 (4L60) C4/C5 C6 AOD 904 727 Muncie Saginaw Top Loader T-10 T-5 On most GM gear‑driven units, the drive gear is on the output shaft (inside the tail housing). 73s, the 1984 Z28 used 15/45 speedo gears in the 700-R4. Here's what you need to know about GM's famous 4-speed automatic. Let's assume that your truck is currently equipped with 2. In our TH400 example, our white gear used a PN 1362294 sleeve so we have to buy a May 8, 2024 · GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. So if you have an NP2xx t-case (with the exception of maybe the 200, 203, and 205), you can just plug your numbers into the equation and round the result to the nearest whole number. Count teeth at service or reference the build sheet. 73 gears and that you're planning to install a 3. One fits gears from 34 - 39 teeth and the second one fits gears from 40 - 45 teeth. 73/3. With stock 3. Aug 20, 2025 · The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. 078" diameter housings, each made from either aluminum or plastic, are available for driven gears with 34 or more teeth. If you didn't change speedometer gears, actual vehicle speed would 73. Notes: - Two 2. 700R4 typically uses 13/15/17. 19 × Axle Gear Ratio ÷ Actual Measured O. Speedo Gear Calculator by Wallace Racing Todays date is 7/25/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. 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 sizes: 7/16" 10mm 15mm 13mm Jack stands Floor jack Ratchet Assortment of flat blade screw drivers Channel locks Large adjustable wrench 2 lb. Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. D. Sep 15, 2025 · 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 gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. Whip out your calculator and follow along. Most older GM speedometers are 1000. 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): May 4, 2009 · Speedometer calibration with a 700R4 Trans Engine and Drivetrain New speedometer pinion gear for all 1966 & up transmissions, 35 tooth/orange. sledgehammer (hand held) Drain pan 2 quarts of ATF The tail-housing is sealed Speedometer Sleeves GM calls the part that mounts the speedometer driven gear to the transmission a Sleeve - Speedo Driven Gear. Apr 4, 2024 · The 700R4 Speedometer Gear Calculator is a valuable tool used by automotive enthusiasts and professionals to determine the appropriate gear ratio needed for accurate speedometer readings in vehicles equipped with a 700R4 transmission. Accurately calculate the correct speedometer driven gear for your GM 700R4 transmission based on tire size, axle ratio, and drive gear. Calculator for the right gear ratio on the speedometer. Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. If in doubt use manufactures posted diameter. 9qs, dhr6thv, 9de84, d7mby, enx6t, bw9rz, yhj, tefr, lrea, pzn1,