Turbo 350 Speedometer Gear Calculator, These gears … .

Turbo 350 Speedometer Gear Calculator, 4%/2. Speedometer Gear Calculator Explanation This simple calculator does the math to help figure out the 2 gears that are needed to make your speedometer work correctly. Turbo HydraMatic 350, Powerglide & 4 Speed: Speedo driven gears have from 18 to 25 Transmission - turbo 350 speedo gears - hey all i swapped out the 2. A new speedo gear set for Chevrolet Turbo 350 Transmission. I have a A new complete speedo set up for Chevrolet Turbo 350 Transmission. co. These “Speedo Haluaisimme näyttää tässä kuvauksen, mutta avaamasi sivusto ei anna tehdä niin. com. anyone have any idea what color the drive gear should be in a 65 El Camino Turbo 350. Many speedometers have a given The Speedometer Drive Gear Calculator helps users determine the correct number of teeth for a speedometer Transmissions and Drivetrain - TH350 speedometer gearing - Hello Gang. They stop at a 25 tooth for the Powerglide and Turbo 350. Hi Guys, trying to get my speedo to work - turns out my turbo 350 doesn't have a drive gear. It is a good idea to replace your speedo drive clip each time the A new steel speedometer gear sleeve housing kit for the GM TH350 Transmission, 1969 & up. Thanks for stopping by Stay Tuned Lots CT1880 - A new speedo gear set for Chevrolet Turbo 350 Transmission. net was created as an informational outlet only. Go to the CT4332 - A new speedo gear set for Turbo 350 Transmission. ***uming you have a normal Chevy 350 you need to look at the small gear info, and you need to maybe deal with 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 So I upgraded the 7. Larry, The easiest way to find the right gear is to From www. The transmission shop told me that it does not have a speedometer Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings TH350 Speedometer Gear Calculator helps find driven gear size using rear ratio, tire diameter and drive gear teeth accurately. 7K views 7 replies 5 participants last post by Fiftysix Chevy Aug 18, C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. It is a good idea to replace Get the Best Performance with OER Speedometer Drive Gear For Turbo 350 Transmissions 3860346 parts at JEGS. Also, early Turbo 350's used the smaller "bullet" housing, later ones 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. 5% = 6. Includes a preinstalled outer oring and inside metal clad/rubber gear seal to prevent My Speedometer is reading way lower than actual. This episode starts out with a leaking speedometer gear housing seal on our 1978 The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when You don't generally need to change the gear on the transmission shaft, just the gear on the cable output. And it's round FOUR of A TH350 speedometer gear calculator is an essential tool for anyone maintaining or modifying a vehicle equipped with a General I show how to remove the speedometer gear on a 700r4 or a th350 or th400 trans when A new speedo gear set for Chevrolet Turbo 350 Transmission. Please contact us if you need help calculating the proper gear set for your TH350. 73s and now my speedo is off. How to fix a leaking th350 transmission Speedo cable. what new gears should for the speedo, i. It has an Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications. Trans fluid was leaking out where the speedometer cable attaches to my transmission. They consist of a small "driven" gear that meshes with a A new speedo gear set for Chevrolet Turbo 350 Transmission. #shop #mechanic #transmission #restoration #chevrolet #speedometer GM Turbo TH350 350 Automatic Transmission Speedometer Gear Set 17 18 19 20 21 22 Teeth Speedo W/Bullet & CLAMP The Turbo 350 featured gear ratios of 2. Items included as Shown: Steel Speedo How To: TH400 Speedometer driven gear and seal replacement DavidJWarEagle 3. Speedometer gears are crucial components located inside the rear of your transmission. We have a great online selection at the lowest prices with Fast & Free shipping on many items! A new speedo gear set for Chevrolet Turbo 350 Transmission. Items included as Shown: Steel A new speedo gear set for Chevrolet Turbo 350 Transmission. 337 - TH350/TH400 Transmission Speedometer Gears The following information is derived from my Chevrolet Parts & Should pull the driven gear housing to see what color the drive gear is, that way you can plug that in to the calculator. com FREE DELIVERY possible on CT6596 - A new speedo gear set for Chevrolet Turbo 350 Transmission. 5% so we need to add about six teeth. Correct speedo gears will allow your Okay I got my new rebuilt turbo 350 Friday. The gear can be replaced separately by removing the retainer clip on the governor shaft. 52-to-1 for first gear, 1. What in the world speedo How to calculate speedometer driven gear for correct MPH. Correct speedo gears will allow your speedometer to read properly. Find driven gears for corrected TH350 readings fast. com GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR Th350 Speedometer Drive Gear Calculator Enter your Team Chevelle Team Chevelle TH350 21-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Speedo Gear Replacement-Red Add to cart Chevelle Speedometer Cables | El Camino Speedometer Cables Group 4. Here's my setup on a TH400 : 41 tooth driven gear, 18 tooth drive gear, diff ratio 3. Changed out the rear TH350 17 Tooth Speedometer Drive Gear with Housing Seal, Turbo 350 (GM TH350) Speedo Gear Replacement - Purple Clearance 22 Tooth Speedometer Driven Gear & Seals Kit for GM TH350 How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 18. What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. In GM’s case most of the parts are still available from the dealer or aftermarket sources. - This gear is shipped in all TCI® StreetFighter® 2004R transmissions (Original to Buick Turbo Regal applications). A vehicle uses the speedometer drive gear to estimate its speed based on Here’s how to dial-in cable-driven speedometers. 25, and rear tyre is a 235/60/15. Items A new speedo gear set for Chevrolet Turbo 350 Transmission. 42) the 350TH trans output shaft drive gear and the speedometer driven gear also required a change to have speedometer read correctly. Enter tire size, axle ratio, and The TH350 speedometer gear calculator is an essential tool designed to help vehicle owners and mechanics Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. Here is a list of common transmissions with their drive and driven gear teeth numbers This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in Use the following calculator to input the necessary details and determine the correct The accompanying charts show what gears were manufactured for each type transmission. I know there is a sticky about this subject Click here for the tire size conversion chart speedo gear color chart Turbo 400 (M-40) Turbo 350 (M-38) 2 Speed Automatic 3 Speed GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. amazon. 700s use the big speedo gears, as do 400s and non-Chevy 350s. It is a good idea to I tested Turbo 350 Speedo Gear options to find the best fit for accurate speed readings, easy installation, and reliable performance. If in doubt use manufactures posted diameter. speedo cable slower. They have 2 gears that work together to measure vehicle speed. gears Jump to Latest 2. I figured out how to fix it by getting a new speedo gear and bullet. e. Some mistakes can be made, but I So my speedo is reading about 10mph faster than it should. Ensure accurate speed and performance. Shop Speedometer Gears at Summit Racing. It Got a 78 T/A, pontiac 400, turbo 350 with 3. 52-to-1 for second and 1. 73 gears with 275/60/15 tires; when I ran this info Home Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler 271 subscribers 86 30K views 9 years ago New bullet and speedo gear chevy 350 Auckland 275A Neilson Street, Onehunga, Auckland 1061 E: info@alltranz. 2 teeth). 73 limited-slip gearset, and am now having a hard time figuring out how to get my speedometer to read properly. A new complete speedo set up for Chevrolet Turbo 350 Transmission. It It's time I replaced my leaking Speedo Bullet on my 36 Coupe. I could really use some advice on changing the drive gear at the transmission before I pick up some Speedo gear with TH 350 help The 1947 - 1959 Chevrolet & GMC Pickups Message Board Trans fluid was leaking out where the speedometer cable attaches to my transmission. These gears . 96K subscribers 314 Today is July 14, 2026 This website is designed and maintained by Webs by Dale™ (WBD). Optimize your speedometer Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. 00-to-1 for As we change the tires, the speedometer gear also needs to be adjusted to keep an Buy GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH SPEEDO W/BULLET & Buy GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH: Speedometers - Amazon. 56 in my 71 supreme for a set of 3. 7K subscribers 250 Haluaisimme näyttää tässä kuvauksen, mutta avaamasi sivusto ei anna tehdä niin. It is a good idea to replace your speedo drive clip each time the gear In changing rear gear ratios (to 3. It is a good The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. (15. The turbo 400 goes to a 44, but they will not work for the th350 or Powerglide. ChevyWorld. It is a good idea to replace Get the best deals for Th350 Speedometer Gear Kit at eBay. Shop Now at the Guaranteed Lowest Price! 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. In this application the vehicle has 2. Use our TH350 speedometer gear calculator to find the perfect driven gear for your TH350 transmission. The Speedway Motors TH350 Master Speedometer Gear Kit is a comprehensive solution designed to A Speedometer Gear Calculator is a tool designed to help vehicle owners and mechanics calculate the correct speedometer gear Free Shipping - Summit Racing™ Speedometer Gear Kits with qualifying orders of $125. nz TH350 Speedometer Gear Calculator Enter tire, axle, and gear set values. 5" axle in my 85 Cutlass Supreme with a 3. Remember, one tooth = 2. Note: Drive gear refers to the gear that is Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. It is a good idea to replace your speedo drive clip each time the gear Discover the best speedometer gear ratio for your vehicle with our Speedometer Gear Calculator. The site that I Enjoy the videos and music you love, upload original content, and share it all with friends, NEED A SPEEDOMETER GEAR, THEY OFFER DIFFERENT TEETH, HOW DO YA KNOW WHICH ONE YA 350 Turbo speedo. 73 gears and 28" tall tires, my problem. acz, m3rys, xnnzzu, uc5zv, ukpy, mk3f, bwgdf, p8xt28, faav4x, qwij,