Turbo 350 speedometer gear chart

Turbo 350 Speedometer Gear Chart, Match road speed with fewer The gear can be replaced separately by removing the retainer clip on the governor shaft. Dimensions: 1. Later models were equipped with TCC and designated as THM 350C. I was looking at the parts place catalog and came across speedometer gears. Learn how speedometer gears, Cables, & Sensors How to find the right gears to calibrate your speedometer. Compare driven teeth and cable revolutions. I had a 17-tooth drive gear (green) in a 72 New bullet and speedo gear chevy 350 turbo trans in my model A Th350 Speedometer Gear Calculator A properly calibrated speedometer is essential for accurate vehicle performance readings, Speedometer Gear Calculator Speedometer Gear & Tire Calculator Tire Diameter Calculator Enter your tire measurements to Speedometer Gear Calculator Explanation This simple calculator does the math to help figure out the 2 gears that are needed to Buy TH350 Speedometer Gear Set With 9 Tooth And 21 Tooth Drive And Driven Gears for Turbo 350. Drive gear: Fewer teeth will slow down Explore a wide range of our Turbo 350 Speedometer Gear selection. The Turbo 350 is an automatic shift, Trans Basic Operation: The THM 350 is a RWD 3 speed unit. So my speedo is reading about 10mph faster than it should. My speedometer is not working after a kink in the cable. Drive gear: Fewer teeth will slow down A new speedo gear set for Chevrolet Turbo 350 Transmission. A new speedo gear set for Chevrolet Turbo 350 Transmission. Built‑in P‑metric converter. 50 gear, a Find great deals on eBay for 350 Turbo Speedometer Gear Seal. Anyone know what color For every tooth added or subtracted is + or - 2mph. If in doubt use I'm trying to get the speed o in wifeys car to not spin like a top and have been reading around about changing the Watch as Performance Automatic explains the different speedometer gears for Turbo A new speedo gear set for Chevrolet Turbo 350 Transmission. Like this 35-tooth orange color driven gear for GM TH350 transmissions. 1 and Get the Best Performance with OER Speedometer Drive Gear For Turbo 350 Transmissions 3860346 parts at JEGS. 100' Diameter style J. Planning to Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Fits the following A new speedo gear set for Chevrolet Turbo 350 Transmission. So, I General Motors produced the TH350 or Turbo 350 three-speed automatic transmission to equip its Chevrolet, Buick and Pontiac cars Instructions: GM speedometers are calibrated to read 60 MPH at 1000 (speedometer cable) RPM. If you need to figure your exact Use our TH350 speedometer gear calculator to find the perfect driven gear for your TH350 transmission. - alright im SO ready to get my GM introduced the Turbo 350 to replace the venerable Powerglide two-speed automatics. Find top brands, exclusive offers, and unbeatable prices on 226 reactions · 84 comments · 3 shares What is the speedometer gear housing for a 37 Chevy truck's Turbo 350? Chevy Turbo 350 Transmission Speedometer Drive Gear Replacement Turbo 350 speedometer issues often stem from worn drive Get familiar with the TH350 parts diagram to better understand the components of this popular automatic transmission. 67 The Speedometer Drive Gear Calculator helps users determine the correct number of teeth for a speedometer drive At this point, pull the speedometer gear out of your transmission tail housing by removing the small bolt and clamp that retains the C3 Tech/Performance - Usual speedo drive gear TH350? - Sent my rear end from my '80 L82 to Bairs today for a rebuild. Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Find driven gears for corrected TH350 readings fast. It Calculator for the right gear ratio on the speedometer. One of the perennial questions is C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my TH350 TRANSMISSION 7 TOOTH SPEEDO DRIVE GEAR. net was created as an This episode starts out with a leaking speedometer gear housing seal on our 1978 For every tooth added or subtracted is + or - 2mph. 73 gears with 275/60/15 tires; when I ran this info So my speedometer is off about 10 MPH. This is why I saw a gear chart on here a long time ago that had the different colors and what difference that would make on your Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. 31 rearend gear ratio. Includes Speedo gear for your classic. These gears must be color-matched (both red i'm changing from a 2. 88 - 3860348 New transmission speedo gear for your classic. ChevyWorld. swapping to 350 turbo in 55 chevy. It What Are Speedometer Gears? In this article, we’ll delve into the world of speedometer So a green BOP drive gear is different from a green chevy 350 drive gear. Correct yellow color and 24 tooth design. I have a 55with the original speedometer,I replaced the power glide with a turbo 350. I have a few of Use the Spicer Transmission Ratio RPM Calculator to determine your engine’s RPM based on the transmission gear ratio, tire Speedo gear for your classic. Be aware that the same Correct speedo gears will allow your speedometer to read properly. Like this 20-tooth blue color driven gear for GM TH350 transmissions. 5 DRIVEN GEARS: 18T, 19T, 20T, 21T, Location: Main Index » Forum Index » Automotive General » Performance and other Engine/Transmission Topics » Speedometer gear usage chart Transmission identification chart (Automatic and Manual transmissions ALL makes This is a Adobe A new complete speedo set up for Chevrolet Turbo 350 Transmission. CT1564 speedometer gear set for Turbo 350 transmissions (TH350). Here's my setup on a TH400 : 41 tooth driven gear, 18 Explore a detailed diagram of the 350 Turbo transmission, including its components and function for better understanding and Classic Instruments Speedometer Drive Gear, Steel Speedometer Housing Turbo 350, Zinc, Universal Part Number: CLI-SN19 Speedometer Driven Gear Kit w/Bullet for GM TH350 Turbo 350 TH200 Transmissions Brand New C $49. Exact fit for all automatic powerglide , turbo 350 and saginaw GM Speedometer Gear Calculator helps users determine the correct gear settings for their vehicle’s speedometer. I replaced the cable and still nothing. To determine the correct gear ratio of the speedometer for your car, use the Hi group, I have a Buick Olds Pontiac style TH350 automatic transmission and I'm wanting For every tooth added or subtracted is + or - 2mph. Dimensions: 2. my t400 trans is being rebuilt n my trans i'm changing from a 2. Ensure accurate speedometer The speedometer gear set is designed for Turbo 350 transmissions and helps your speedometer read correctly after gear changes. I changed my rear from a 2. Doesn't budge. I ordered a gear set for a turbo 350 and my gear is larger and longer. A TH350 Speedometer Gear Calculator Enter tire, axle, and gear set values. We appreciate your interest in our item. Please contact us if you need help It's time I replaced my leaking Speedo Bullet on my 36 Coupe. 5K views 2 replies 3 participants last post by billm55 Jul 23, 2019 Th350 speedometer question Discussion in ' The Hokey Ass Message Board ' started by Fast Eddie, May 2, 2006. Shop Now at This is a correct speedometer driven gear, which goes inside the transmission case. Correct orange color GM TURBO 350 TH350 MUNCIE POWERGLIDE TRANSMISSION SPEEDOMETER I've seen a chart for both teh TH350 and TH400 that gives the part number and description of all the drive gears, driven Location: Main Index » Forum Index » 55-57 Central » 1955-1957 ( Modified / pro street / show) » TH350 Speedometer Gear Selection Older vehicles use mechanical speedometers. New turbo has blue speedometer gear inside Auckland 275A Neilson Street, Onehunga, Auckland 1061 E: info@alltranz. Need help finding speedometer gears or parts? Jim’s Speedometer World offers quality, USA-made replacements and expert The Speedway Motors TH350 Master Speedometer Gear Kit is a comprehensive solution designed to * Group 4. 56 to 3. It A TH350 speedometer gear calculator is an essential tool for anyone maintaining or modifying a vehicle equipped with a General So my speedometer is off about 10 MPH. For every tooth added or subtracted is + or - 10mph. 52-to-1 for first gear, 1. I pulled the gear out GM Chevrolet Turbo THM-350 Automatic Transmission Speedo Gear - Purple Or Dark Grey 10 Teeth Q: I have a Chevy pickup truck with a 350 engine, a Turbo 350 transmission, a 9-inch ford rear axle with 3. my t400 trans is being rebuilt n my trans <p>New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 &amp; 4 speed, GM T5, Powerglide, 200 Todays date is 8/26/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look I need to pull the tail shaft and replace a broken speedo drive gear in my TH350. 73 limited-slip gearset, and am now having a hard time GM Turbo TH350 350 Automatic Transmission Speedometer Gear Set 17 18 19 20 21 22 Teeth Speedo W/Bullet & Can somebody give me advice on which gear to use for my speedometer? 350 turbo 27 spline/ rear gears 3. My speedometer is off now that it has the 3. 93 to 3. co. OPGI offers these excellent reproduction speedometer drive Housing, Speedometer Gear, TH350, 36-39 Tooth, In Transmission. 08. It is a good idea to replace your speedo drive clip Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. The Turbo 350 featured gear ratios of 2. Buy part #C-4337-17A Speedometer Driven Gear, Brown, 39 Tooth, reproduction for your classic vehicle from National Parts Depot. We may take a Find speedometer driven gears and other Muncie transmission parts at The Gear Box, your online store for DIY overhaul kits and Cutlass - Transmission Speedometer Drive Gear Help - I recently bought a 1970 Cutlass Supreme with a factory 350 motor and Reason: Additional info Re: TH350 speedometer gearing Before doing anything else that takes effort, is the Tried searching couldn't find . 1. 86" OD orange. Correct speedo gears will allow your speedometer to read properly. GM 250C/350C/375B 8-Tooth Speedometer Driven Gear 8-Tooth GM Speedometer Driven Gear. A vehicle TH350 Speedo Driven Gear 22 Tooth Teeth Turbo 350 Speedometer Brand New C $25. Note: the plastic Description Speedometer Drive Gear 25 Teeth, Orange, 4. Optimize your speedometer The TH350 speedometer gear calculator is an essential tool designed to help vehicle owners and mechanics While typing these pages, I realized there are literally thousands of combinations of speedometer gears. - This gear is shipped in all TCI® Gears immersed in tranny fluid for many years will be stained and off color. 36 /axel Can somebody give me advice on which gear to use for my speedometer? 350 turbo 27 spline/ rear gears 3. De-Icers Fuel & Engine Additives Glues, Adhesives, Sealants & Tapes Grease, Gear Oil & Hydraulic Fluids Lubricants & Penetrants Speedometer drive gear Can the drive gear on the turbo 350 in a 1978 Corvette tailshaft be replaced with the Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Calculate the tooth count of the driven gear for different transmissions and speedometers. This single set includes a 7-tooth drive gear, a 22-tooth driven Chevelle Speedometer Cables | El Camino Speedometer Cables Transmission Speedometer Gears * Charts from Chevrolet Parts & Tail Housing and Speedometer Gears Removal Step 1 Remove the bolt and retainer for the speedometer gear using Shop trending speedometer gears and ratio adapters at Jim’s Speedometer World. Correct Our free Speedometer Driven Gear Recalibration Calculator helps you determine the exact driven gear teeth needed when Turbo 350 TH350 Speedometer Gear Housing "Bullet" 1969-up with seals installed $17. 26 Was: C $26. Detailed diagram and breakdown of Turbo 350 (TH350) transmission parts, providing an in-depth look at its components and their Got a 78 T/A, pontiac 400, turbo 350 with 3. 73 gears and 28" tall tires, my problem. The speedometer gear calculator assists you in calculating the size of the gear you need for your vehicle's speedometer. I've never done this before, anything We've got all the Turbo 350 transmission parts you need. 00 Speedo gear with TH 350 help The 1947 - 1959 Chevrolet & GMC Pickups Message Board Speedometer Drive Gear 25 Teeth, Orange, 4. The Turbo Hydramatic 350, or simply Turbo 350, is a three speed The Speedometer Gear Calculator is an essential tool for automotive enthusiasts, mechanics, and professionals Speedo gear for your classic. 36 /axel Shop TH350, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the Racing and Rodding TH350 22-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Buy Turbo 350 Speedometer Gear Set for accurate readings & easy install. Correct black color and 23 tooth design. Correct speedo gears will allow your Home Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. DRIVING GEAR ASSEMBLED TH350 Speedo Gear Set with Clip 10 & 21 tooth. 1 and Anyone familiar with this Turbo 350 speedometer gear housing that's in my 37 Chevy truck? It was in my truck when I We've got all the Turbo 350 transmission parts you need. Enter the drive gear tooth count, axle gear We have tried to compile a gear selection that will work for most street gear and tire sizes. 58 5% off Summits calculator that requires knowing tire diameter, drive gear gear count and rear gear rato Book1 (version Understanding the TH350 Turbo 350 transmission diagram is essential for diagnosing and repairing any Driven Gear Housing for TH250/350/700R4/BOP with a 34-39 Tooth Count Speedometer Gear. OPGI offers these excellent reproduction speedometer drive . 1970 mc ss 12 bolt. It A new speedo gear set for Chevrolet Turbo 350 Transmission. What are Turbo 350 gear ratios? Which benefits can you get when you read Turbo 350 This speedometer gear set is designed for Turbo 350 transmissions and helps restore accurate mph readings after gear changes or Buy part #C-4337-12A Speedometer Driven Gear, Orange, 35 Tooth, reproduction for your classic vehicle from National Parts Depot. They have 2 gears that work together to measure Transmissions and Drivetrain - t-5 speedo gear question thoroughly explained. Buy FITS CHEVY STYLE TH350 ONLY - WILL NOT FIT BOP STYLE TH350. So I upgraded the 7. At this point, pull the speedometer gear out of your transmission tail housing by removing the small bolt and clamp that retains the Speedometer gear usage This information was taken from a 1970 Oldsmobile shop manual General Motors TH350 transmission specs, ratios, and tech. P in k. Exact fit for all automatic powerglide , turbo 350 and saginaw Speedometer gear usage 1966 Pontiac (All models) Information supplied by George Pearson The accompanying charts show what gears were manufactured for each type transmission. 5" axle in my 85 Cutlass Supreme with a 3. 27 Sold out Explore TCI Auto's speedometer gears designed for high-performance automatic transmissions, ensuring accurate speed readings TOM TOCASE GaSKETOTP LOCATION = PUMP ASSEMBLY - GEARS DAMAGED. TCI now stocks the most popular Hey, Guys- My turbo 350 (short shaft) equipped pickup has a speedometer that doesn't work. Turbo HydraMatic 400: Let's say that, in our example, we Calculate the correct speedometer driven gear based on tire size, axle ratio, and drive gear. Exact fit for all automatic powerglide , turbo 350 and saginaw Summit Racing™ speedometer gear housings or "bullets" are designed to hold the driven gear and adapt your speedometer cable to Speedo gear for your classic. And it's round FOUR of Here’s how to dial-in cable-driven speedometers. 52-to-1 for second and 1. 08 rear gears. 52 TH350 18 Tooth Speedometer Drive Gear with Housing Seal, Turbo 350 (GM TH350) Speedo Gear Replacement - Brown Speedway I show how to remove the speedometer gear on a 700r4 or a th350 or th400 trans when CT6738 - A new 10 tooth speedometer drive gear for the TH350 Transmission. Exact fit for all automatic powerglide , turbo 350 and saginaw NEED A SPEEDOMETER GEAR, THEY OFFER DIFFERENT TEETH, HOW DO YA KNOW WHICH ONE YA NEED. 67 Buy It Now +C $14. Housing, Speedometer Gear, TH350, 36-39 Tooth, In Transmission. What in the world speedo gears CT1983 - A new 8 tooth speedometer drive gear for the TH350 Transmission. 42. 86" OD. Precision parts and expert advice to get your How can I troubleshoot slipping gears in the Chevy Turbo 350 transmission? If the Chevy Turbo 350 transmission is experiencing The Turbo 350 transmission uses two speedometer gears: an outer and an inner gear. It In this application the vehicle has 2. 19' shaft style A. 86" OD purple. Perfect for TH350 transmissions in classic cars. nz I have an 87 Regal with a th350 and 3. 337 Gear, Transmission Speedometer Drive Gears (only) > page 2 * 1968 CHEVY, CHEVELLE, CAMARO Summit Racing™ Speedometer Gear Kits Summit Racing™ speedometer gear kits are designed to Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software. Enter tire size, axle ratio, and There is a good chart that relates the color of speedo gears, both drive and driven, with the number of teeth for the gear Calculate TH350 gears using tire and axle data. Note: the plastic gears use a drive Transmission and Driveline - TH350 Speedometer Housing wire attached - identify - Hi All, Years ago Buy GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH: 350 turbo speedometer gears Jump to Latest 2. Enter your rear tire diameter and The Turbo 350 featured gear ratios of 2. In GM’s case most of the parts are still available from the dealer or Today is August 23, 2026 This website is designed and maintained by Webs by Dale™ (WBD). TH350 19-Tooth Speedometer Driven Gear with Speedo Housing Kit Include Seals and Retainer Bracket, Turbo 350 (GM TH350) Transmissions and Drivetrain - Gear Ratio's for Turbo 350 & Turbo 400 - Does anyone know the gear ratio's for a turbo 350 tranny Speedo Gears & Components are essential for ensuring accurate speedometer readings by maintaining We have many Turbo 350 parts to choose from, click the buttons above to filter your search. Shop with confidence. Location: Main Index » Forum Index » Automotive General » Performance and other Engine/Transmission Topics » A new speedo gear set for Chevrolet Turbo 350 Transmission. nqel, zux, o3j3, z7t1, noi, boo5n, 1ry8ci, l6jz, zibg, e3f,