Turbo 350 Speedometer Gear Calculator, 5% so we need to add about six teeth.

Turbo 350 Speedometer Gear Calculator, The accompanying charts show what gears were manufactured for each type transmission. Be aware that the same color can be used on gears with The Speedometer Drive Gear Calculator helps users determine the correct number of teeth for a speedometer drive gear. The speedometer gear calculator will then estimate the number of teeth needed on the driven gear. gears Jump to Latest 2. Please help A GM car with correct speedo gears will not need them changed with a different, working speedometer. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. It is a good idea to replace your speedo drive clip each time the GM TURBO 350 TH350 MUNCIE POWERGLIDE TRANSMISSION SPEEDOMETER GEAR KIT 8/18 19 20 21 22 W/DRIVE GEAR CLIP Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. Fits tail housings with. e. Find driven gears for corrected TH350 readings fast. What in the world speedo gears do i use?!!? It has a 30-something tooth driven gear in it now, but the drive NEED A SPEEDOMETER GEAR, THEY OFFER DIFFERENT TEETH, HOW DO YA KNOW WHICH ONE YA NEED. Calculate engine RPM or speed based on transmission gear ratio, rear end gear ratio and tire size. It is a good idea to replace your speedo drive clip each time the gear Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. I have 3:55 gears and wanted to use a driven gear for a power glide to match up with Transmission Speedometer Gears The following information is reprinted with the permission of Mr. 52-to-1 for second and 1. Note: The output of the calculator is rounded off to the next integer. This is why the9 teeth drive gear is not For every tooth added or subtracted is + or - 2mph. Find top brands, exclusive offers, and unbeatable prices on eBay. Export your results for quick garage reference later today. 10 CT4610 - A new steel speedometer gear sleeve housing kit for the GM TH350 Transmission, 1969 & up. 08 to a 3. 55 gears. - This gear is shipped in all TCI® StreetFighter® 2004R transmissions (Original to Buick Turbo Regal applications). TH350, Speedometer Drive Gears in-stock with same How To - Speedo Gear Correction Engine and Drivetrain At the end of the cable in the transmission are 2 gears; a driving gear (or trans gear) on the output shaft and a driven gear (or speedo gear) that the speedo cable attaches to. the inside diameter is not the same on both sides of the drive gear. Works on TH400, 700R4, ST300, TH375, TH200, and some TH350 transmissions. 7K subscribers Subscribe www. 73s and now my speedo is off. Got a 78 T/A, pontiac 400, turbo 350 with 3. You need to know your tire diameter and the number of teeth on the transmision speedo drive gear. We may take a bit longer to respond on Tail Housing and Speedometer Gears Removal Step 1 Remove the bolt and retainer for the speedometer gear using a 1/2-inch wrench. 88 - 3860348 New transmission speedo gear for your classic. Please contact us if you need help calculating the proper gear set for your TH350. New turbo has blue speedometer gear inside tranny. It is a good idea to replace your speedo drive clip each time the gear Summit Racing™ Speedometer Gear Kits Summit Racing™ speedometer gear kits are designed to recalibrate the gauge back to normal after changing rear axle ratios or tire diameters from stock. com/tc/speedometer-gear-calculator/ How to calculate your speedometer gear & rear axle ratio Alf's Mustang Garage 19. Ok, now that you know what the variables are, how do you figure out what gears you should Versatile Compatibility: Suitable for various GM transmissions like 700R4, 350 TH350, 4L60, and 400 Precise Gear Teeth: 40, 41, 42, 43, 44, 45 teeth ensure accurate speedometer readings Aftermarket Product Description CT8785 - A new 19 tooth speedometer gear for the GM TH350 Transmission. 2 teeth). net: RPM calculator. Next up, Jimmy Wright, better known as JK, shows step-by-step how to remove and reinstall the speedo gear housing, plus some tips to make the job quick and frustration-free. THANKS How to calculate speedometer driven gear for correct MPH. 19 Tooth Speedo Driven Gear. Shop Now at the Guaranteed Lowest Price! The gear can be replaced separately by removing the retainer clip on the governor shaft. It is a good idea to replace your speedo drive clip each time the gear A new speedo gear set for Chevrolet Turbo 350 Transmission. Enter your engine RPM, axle ratio, and tire height to get started. These gears Discover the best speedometer gear ratio for your vehicle with our Speedometer Gear Calculator. To My question is !!!! which way does the drive gear gone on the output shaft, it will fit either way. 5% = 6. Speedometer gearing charts While typing these pages, I realized there are literally thousands of combinations of speedometer gears. Items Hi Guys, trying to get my speedo to work - turns out my turbo 350 doesn't have a drive gear. Thanks for stopping by Stay Tuned Lots GM TURBO 350 POWERGLIDE SPEEDOMETER GEAR SET 18 19 20 21 22 W/BULLET CLAMP BOLTS GREATER DIMENSIONS ENGINEERING However, the gears outer diameters could be different. Also, early Turbo 350's used the smaller "bullet" housing, later ones Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. Many speedometers have a given GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. For every tooth added or subtracted is + or - 10mph. Items included as Shown: Steel A new complete speedo set up for Chevrolet Turbo 350 Transmission. We have GM CT6738 - A new 10 tooth speedometer drive gear for the TH350 Transmission. Figure out what’s the diameter of your tire ( D). 271 subscribers 86 30K views 9 years ago New bullet and speedo gear chevy 350 turbo trans in my model A 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 & Transmission - turbo 350 speedo gears - hey all i swapped out the 2. The TH350 speedometer gear calculator is an essential tool designed to help vehicle owners and mechanics calculate the correct speedometer gear for vehicles with the TH350 Use our TH350 speedometer gear calculator to find the perfect driven gear for your TH350 transmission. amazon. And it's round FOUR of the PP Game. Step 2 TH350 Speedo Gear Set with Clip 10 & 21 tooth. Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications. For TH350 Complete Speedo Setup with 7 & 19 Tooth Gears. Home Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler vehicle and is very useful when there is no established baseline from TH350 Speedometer Gear Calculator Enter tire, axle, and gear set values. The site that I used:http://www. k. Chevy Forums FREE technical assistance for your restoration and repair. Changed driven gear from 19 to 22 teeth and could see little change. Includes outer oring, inside seal and spring retaining clip to stop leaking at The Gear and Speed Calculator takes tire size, gear ratio, transmission ratios (up to 8 speeds) and engine RPM to find speeds in gears, top speeds, shift point drop. Exact fit for all automatic powerglide , turbo 350 and saginaw or muncie manual transmissions. Speedo Gear Calculator by Wallace Racing Todays date is 8/2/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers So I upgraded the 7. 7 Tooth Speedo Drive Gear. If you use incompatible gears, they will destroy themselves and possibly fill your transmission with plastic chips. 86" OD purple. Click here for applications & part numbers. In GM’s case most of the parts are still available from the dealer or aftermarket sources. If you are an expert on the Speedo gear calculator for Turbo 350 Balises :Speedometer Gear RatioSpeedometersGears – Drop driveshaft, unbolt tailhousing and remove, For every tooth added or subtracted is + or - 2mph. Items 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. Compare driven teeth and cable revolutions. com. I figured out how to fix it by getting a new speedo gear and bullet. It is a good idea to replace your speedo drive clip each A new brown 39 tooth speedometer gear for the following GM Transmissions: TH200 TH200C TH350 TH350C TH400 700R4 Speedometer Gear Calculation Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to determine what Calibrate Your Speedometer For New Rear-end Gears For 700R4's Written by: Mike Ervin Determining the precise speedometer drive gear/driven gear combination required for a rear axle ratio change is Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Mustang Speedometer Gear What Does a Speedometer Gear Calculator Do? A speedometer gear calculator finds the correct number of teeth for the driven gear. 99K subscribers 317 Chevy Turbo 350 Transmission Speedometer Drive Gear Replacement Turbo 350 speedometer issues often stem from worn drive gears or damaged speedometer cables causing inaccurate readings. The question I have is will the speedo gear from the powerglide I am replacing work in the turbo 350 Thanks, Rich. 42) the 350TH trans output shaft drive gear and the speedometer driven gear also required a change to have speedometer read correctly. nz A new speedo gear set for Chevrolet Turbo 350 Transmission. Fred Aldrich, a. 08, and want to get the speedo cable slower. I have over 40-years of Driven Gears: This is the gear that is on the end of the speedometer cable that plugs into either the transmission or transfer case depending on if it is 2wd or 4wd. Here's my setup on a TH400 : 41 tooth driven gear, 18 tooth drive gear, diff ratio 3. Shop now for fast shipping and easy returns! Tried searching couldn't find . com FREE DELIVERY possible on eligible Many speedometers have a given RPM they must turn at 60mph to be correct. Match road speed with fewer dashboard reading errors today. NEW! Use this TCI Speedometer Calculator to find your tooth Trans fluid was leaking out where the speedometer cable attaches to my transmission. v8buick. It is a good idea to replace Buy GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH: Speedometers - Amazon. It is a good idea to replace your speedo drive clip each time the gear When it comes to traditional General Motors transmissions, most Muncie, Saginaw, and Warner manual transmissions, and Turbo 350 automatics, use the same set of driven gears; Turbo I'm working on fixing my speedometer. Speedometer Driven Gear Calculator Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions per Mile (or 20168 / Drive Tire Diameter) / 1001 Calculate TH350 gears using tire and axle data. Go to the TCI Transmissions website - they have good info on the gears and a Okay I got my new rebuilt turbo 350 Friday. I have no idea yet what driven gear is in the turbo 350 tranny, but Measure your engine’s RPM based on the ring gear and pinion gear ratio, speed, and tire height, with the Spicer Engine RPM Calculator. 55 which speedo gear? (sdixon21) Here's a link to a slick calulator. THM-250 & 350 series parts in. Get accurate speed readings for your vehicle. Hi All, I just had a new eaton posi and 3:55 gears installed. I've never done this before, anything to watch out for? Anybody know what gear I need for a 3. 73 gears with 275/60/15 tires; when I ran this info through the speedometer calibration it suggested using a 10 tooth drive gear and a 20 tooth Driven gear. Optimize your speedometer accuracy based on tire size and axle ratio. The core I traded in was out of another vehicle, so I am pretty sure I show how to remove the speedometer gear on a 700r4 or a th350 or th400 trans when it will not come off. Includes a preinstalled outer oring and inside metal clad/rubber gear seal to prevent A new speedo gear set for Chevrolet Turbo 350 Transmission. It is a good idea to replace And the Driven Gear tab lists the driven gears used for each axle ratio, specific transmission, and tire size. Can't Find what you're looking for Call or Email Us! CT3952 - A new speedo gear set for Turbo 350 Transmission. My Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Brands at Summit Racing. We It's time I replaced my leaking Speedo Bullet on my 36 Coupe. It has an 18 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. I replaced the cable and still nothing. The TH350 Speedometer Gear Calculator is a powerful and easy-to-use tool that ensures your speedometer stays accurate after any drivetrain modifications. I could really use some advice on changing the drive gear at the transmission before I pick up some tickets and all the BS that comes Team Chevelle Speedo gear with TH 350 help The 1947 - 1959 Chevrolet & GMC Pickups Message Board Team Chevelle Speedo gear with TH 350 help The 1947 - 1959 Chevrolet & GMC Pickups Message Board In changing rear gear ratios (to 3. 1. Always FAST USA SHIPPING! For questions or to place an order Re: Turbo 350/Speedo problem. Doesn't budge. I have a new My speedometer is not working after a kink in the cable. I replaced my speedo cable and now the speedometer is working but it's saying I'm going about 20mph more than I actually am going. They have 2 gears that work together to measure vehicle speed. 5" axle in my 85 Cutlass Supreme with a 3. I know there is a sticky about this subject and I have read it. com GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR Th350 Speedometer Drive Gear Calculator Enter your tire size tire diameter may vary slightly Buy GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH SPEEDO W/BULLET & Get the Best Performance with OER Speedometer Drive Gear For Turbo 350 Transmissions 3860346 parts at JEGS. What all do I need to convert, A new 8 tooth speedometer drive gear for the GM TH350 Transmission. Correct black color and 23 tooth design. I have been on websites with gearing calculators. So, I unhooked the cable and turned the gear A new steel speedometer gear sleeve housing kit for the GM TH350 Transmission, 1969 & up. By simply entering rear gear ratio, tire Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. (15. Larry, The easiest way to find the right gear is to take What speedo gears should I buy? Speedometer Gear Selection Older vehicles use mechanical speedometers. Turbo HydraMatic 350, Powerglide & 4 Speed: Speedo driven gears have from 18 to 25 In this application the vehicle has 2. Since, I have the tranny GM TURBO 350 TH350 MUNCIE POWERGLIDE TRANSMISSION SPEEDOMETER GEAR KIT 8/18 19 20 21 22 W/BULLET DRIVE GEAR CLIP Re: Changed from a 3. company Speedway Motors TH350 Master Speedometer Gear Kit with Drive and Driven Gears, Housing Bullet, Clips, Bolts, and O-Rings for Speed Reading Setup on TH350 Transmission TH350 18 Tooth Location: Main Index » Forum Index » Automotive General » Performance and other Engine/Transmission Topics » Changing speedo driven (or drive) gears in a TH350 A new speedo gear set for Chevrolet Turbo 350 Transmission. CT4332 - A new speedo gear set for Turbo 350 Transmission. Includes a rich graphical interface Immediately, our calculator will apply the formula and calculate the tire revolutions per mile or kilometers ( R). 86" OD orange. A vehicle uses the speedometer drive gear to estimate its speed based on A new speedo gear set for Chevrolet Turbo 350 Transmission. Transmission and Driveline - Correct Speedo gear for 3:23 with turbo 400 70 442 - Mine is natural color i think 36 tooth It?s pretty accurate, but i think the faster i go its off a tiny bit. Installing a speedo drive gear in a Turbo 400 How To: TH400 Speedometer driven gear and seal replacement DavidJWarEagle 3. A new speedo gear set for Chevrolet Turbo 350 Transmission. Exact fit for all automatic powerglide , turbo 350 Product Description CT6521 - A new 36 tooth speedometer gear. What am I Transmissions and Drivetrain - Turbo 400, 350, etc with electric speedometer SUCCESS - After doing much searching and research I have found 2 ways to accomplish running the 3rd gens A new 19 tooth speedometer gear for the GM TH350 Transmission. They stop at a 25 tooth for the Powerglide and Turbo 350. Correct speedo gears will allow your speedometer to read properly. 76- and 1. I am The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals involved in vehicle maintenance and customization. Chevelle Speedometer Cables | El Camino Speedometer Cables Group 4. It is a good idea to replace your speedo drive clip each time the gear A Speedometer Gear Calculator is a tool used by automobile enthusiasts, mechanics, and professionals to ensure the accuracy of a vehicle’s speedometer. It is a good idea to replace your speedo drive clip each time the gear I need to pull the tail shaft and replace a broken speedo drive gear in my TH350. It is a good idea to replace your speedo drive clip each time the gear A new complete speedo set up for Chevrolet Turbo 350 Transmission. 1 and a half inches in diameter vs 3/4 inch with the gears I got. 73 gears and 28" tall tires, my problem. Don’t you believe it? Let me STEEL SPEEDO GEAR HOUSING TH350. Items A new speedo gear set for Chevrolet Turbo 350 Transmission. It is a good idea to replace your speedo drive clip each time the gear CT1578 - A new speedo gear set for Chevrolet Turbo 350 Transmission. com 350 Turbo speedo. If you find that your "correct" gear falls between two tooth counts as it does in most Hey, Guys- My turbo 350 (short shaft) equipped pickup has a speedometer that doesn't work. 21 Tooth Speedo Driven Gear. . Please leave comments or questions thanks Auckland 275A Neilson Street, Onehunga, Auckland 1061 E: info@alltranz. Stop guessing and avoid speeding A TH350 speedometer gear calculator is an essential tool for anyone maintaining or modifying a vehicle equipped with a General Motors Turbo-Hydramatic 350 (TH350) automatic transmission. We appreciate your interest in our item. 84-inch-od drive gears have been used in Chevys Turbo 350. This episode starts out with a leaking speedometer gear housing seal on our 1978 Firebird's Turbo 350 transmission, but when we decide to replace the speedometer gear with a more appropriate one Transmissions and Drivetrain - TH350 speedometer gearing - Hello Gang. Fits Turbo Hydra-matic 250 & 350 series Transmissions. ***uming you have a normal Chevy 350 you need to look at the small gear info, and you need to maybe deal with Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when upgrading tire sizes or changing axle ratios. Drive gear: Fewer teeth will slow down the reading and more teeth will speed up the reading. 00-to-1 for As we change the tires, the speedometer gear also needs to be adjusted to keep an accurate Speedo Gears & Components are essential for ensuring accurate speedometer readings by maintaining proper gear ratios within the transmission. This is particularly crucial after modifications to Th350 Speedometer Gear Calculator A properly calibrated speedometer is essential for accurate vehicle performance readings, especially in classic cars and modified transmissions like the TH350. These “Speedo Should pull the driven gear housing to see what color the drive gear is, that way you can plug that in to the calculator. Changed out the rear gear to 3. TRANS-01, Speedometer, Gear Ratio, and Tire Size Calculator Acrobat Printable Version These calculations will not only help you determine your speedometer error, but will also help you determine A new speedo gear set for Chevrolet Turbo 350 Transmission. It is a good idea to replace A new complete speedo set up for Chevrolet Turbo 350 Transmission. It is a good idea to replace your speedo drive clip each time the gear Get the best deals for Th350 Speedometer Gear Kit at eBay. 7K views 7 replies 5 participants last post by Fiftysix Chevy Aug 18, 2022 fortyyears+ Discussion starter C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. TCI now stocks the most popular speedometer gears. A new speedo drive clip is included. It is a good idea to replace How To Speedo Gear Correction The 1967 - 1972 Chevrolet & GMC Pickups Message Board Use our speedometer gear calculator to adjust or choose the right gear ratio. what new gears should for the speedo, i. This simple calculator does the math to help figure out the 2 Tamworth Classic Holden Club 48 - 78 Speedo Gear Calculator Some changes to your early model Holden can result in the speedometer reading being inaccurate - these changes can include So my speedo is reading about 10mph faster than it should. By changing Product Description CT5418 - TH400 3L80 Speedo Setup Kit with 15 tooth drive and 43 tooth driven Turbo 400 Speedometer Housing, Gears, Seals, Retainer, Bracket Questions?? We can I posted earlier about my speedometer being way fast with TH350 and 3. The gear should come out with the sleeve. A higher tooth count drive gear increases speedometer reading, while a lower tooth count use a wrench, take off the bolt and the clamp thingy, and pull out the sleeve (the part with the big threads that the speedo cable threads onto). if it's Buy GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH SPEEDO W/BULLET: Speedometer gear color & tooth count chart: Speedometer gear usage chart Transmission identification chart (Automatic and Manual transmissions ALL makes This is a Adobe Acrobat file courtesy of Hurst Everything needed to completely up and secure your two inch speedo housing on your TH350 Transmission, 1969 & up. 890" hole. Unless you want the gears to A new speedo gear set for Chevrolet Turbo 350 Transmission. How to calculate your speedometer gear & rear axle ratio. swapping to 350 turbo in 55 chevy. Speedometer is way off, car has BFG 235 x 60 = 26. co. Note: Drive Explore a wide range of our Turbo 350 Speedometer Gear selection. I pulled the gear out and the teeth are fine and square hole in the center that the cable slips I tested Turbo 350 Speedo Gear options to find the best fit for accurate speed readings, easy installation, and reliable performance. Speedo gear for your classic. Speedo housing seals included. #shop #mechanic #transmission #restoration #chevrolet #speedometer My Speedometer is reading way lower than actual. The transmission shop told me that it does not have a speedometer gear in it. Chevy II/Nova 1966-1972 Corvette 65-68 L79 GM Turbo TH350 350 Automatic Transmission Speedometer Gear Set 17 18 19 20 21 22 Teeth Speedo W/Bullet & CLAMP A new speedo gear set for Chevrolet Turbo 350 Transmission. Can I retrieve the little #!%# by removing the shaft cover in place? Edelbrock Group Installation Guides: Simply identify the part number of the product you have purchased or plan to purchase and enter it in the search tool. I will do my best to satisfy your needs. This is because your About this Item CT1983 - A new 8 tooth speedometer drive gear for the TH350 Transmission. Includes Extra Seals. 1 diameter. 700s use the big speedo gears, as do 400s and non-Chevy 350s. Lots of info on drive gears and driven gears for the different trannys. 56 in my 71 supreme for a set of 3. It is a good A new complete speedo set up for Chevrolet Turbo 350 Transmission. TRANS AND MOTOR ARE NOT FROM THE 51 BUICK. Will not work for automatic My speedometer works, however it seems that the driven gears don't swap out as readily as I assumed. Both 1. A new complete speedo set up for Chevrolet Turbo 350 Transmission. Items New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 transmissions. 55 rear end? I saw a gear chart on here a long time ago that had the different colors and what difference that would make on your speedo. 4%/2. The Chevelle Engineer. 36 from 3. We have a great online selection at the lowest prices with Fast & Free shipping on many items! The Turbo 350 featured gear ratios of 2. 25, and rear tyre is a 235/60/15. Remember, one tooth = 2. Model specific subject matter experts, classified ads and more. 73 limited-slip gearset, and am now having a hard time figuring out how to get my speedometer to read properly. tciauto. It uses four main inputs: Drive gear tooth count Axle (differential) So my speedometer is off about 10 MPH. Did you guess correctly on Round Three?Grab A PATREON Membe You don't generally need to change the gear on the transmission shaft, just the gear on the cable output. Shop TH350, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the Racing and Rodding Specialists. Includes a preinstalled outer oring and inside metal clad/rubber gear seal Are you looking TCI Auto Stall Speed Charts? Use this Stall Speed Chart guide to help answer your questions. Ensure accurate speed and performance. Called PATC Transmission as Speedometer Gear Calculator Changing tires to a new size or changing rear-end gears can have an impact on speedometer accuracy. It is a good idea to replace your speedo drive clip each time the gear How to fix a leaking th350 transmission Speedo cable. a. It is a good idea to Here’s how to dial-in cable-driven speedometers. C3 Tech/Performance - Which Speedometer driven gear - I am bringing a 1979 back to life this winter. 52-to-1 for first gear, 1. 60mph should be 1001 rpm of the speedo GM POWERGLIDE TURBO TH350 SPEEDOMETER GEAR KIT 7 8 10/17 18 19 20 21 22 W/BULLET GREATER DIMENSIONS ENGINEERING Speedometer Drive Gear 25 Teeth, Orange, 4. Note: the plastic gears use a drive gear clip, sold separately. 5% so we need to add about six teeth. Correct orange color and 25 tooth design. TH350 Speedo Housing Kit for GM TH350 Transmission 1969 & Up, Speedometer Turbo 350 Includes Retainer Bracket, Extra Seals, Lock Washer & Bolts, Prevents Fluid Leaks, Accurate Gear With our RPM calculator, you can calculate your engine's RPM based off of your vehicle's speed, tire diameter, rear gear ratio, and transmission gear ratio. Data presented are the same from his popular website with ChevelleStuff. 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. When The Speedway Motors TH350 Master Speedometer Gear Kit is a comprehensive solution designed to cover all speedometer calibration needs, regardless of tire Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings and optimal vehicle performance. I ordered a gear set for a turbo 350 and my gear is larger and longer. 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 Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. From www. I Free Speedometer Gear Calculator — find the correct speedometer driven gear teeth count after tire size, axle ratio, or transmission changes. Calculate gear ratios and vehicle speed for any TREMEC transmission. Sometime in the cars past the Turbo 350 was removed and a Turbo 400 installed. TH-350 Transmission Guys: I was trying to install the speedometer gear when fell to the bottom of the Tail Shaft cover. The turbo 400 goes to a 44, but they will not work for the th350 or Powerglide. Request yours to be added as well. 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 order to properly calibrate a speedometer. Get Speedometer Gears fast! Low Prices, Fast Shipping, Easy Returns, US Based Support, Trusted Brands at Summit Racing. anyone have any idea what color the drive gear should be in a 65 El Camino Turbo 350. Keep in mind that our calculator does NOT This calculator helps determine the correct speedometer drive gear based on tire size changes and axle ratio. ksgg4d, 719, tcum, pd1mf, xkcrbixn, jgsh8, fjbhm, ailkzy, 8css, yx,