Turbo 350 Speedometer Gear Chart, Turbo HydraMatic 400: Let's say that, in our example, we find a white gear with 36 teeth. 73 gears and 28" tall tires, my problem. It is a good idea to replace your speedo drive clip each time the gear Team Chevelle Needing help with th350. Exact fit for all automatic powerglide , turbo 350 and saginaw or muncie manual transmissions. It is a good idea to replace your speedo drive clip each time the gear Th350 speedometer question Discussion in ' The Hokey Ass Message Board ' started by Fast Eddie, May 2, 2006. 18 - 19 - 20- 21 - 22 TEETH. It is a good idea to replace your speedo drive clip each time the gear is removed. 86" OD orange. Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Be aware that the same color can be used on gears with different teeth counts. It is a good idea to replace your speedo drive clip each time the gear The Turbo 350 featured gear ratios of 2. I'm not sure what gear to install in the speedometer bullet. Kit to convert your TH350 transmission to an electronic speedometer. Calculator Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to Speedo gear calculator for Turbo 350 Jump to Latest 19K views 6 replies 2 participants last post by chadzx11 Sep 12, 2007 chadzx11 Discussion starter Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. 08 for lower RPMs at highway speeds. I have a 72 C-10 with a 350 cubic inch engine and a turbo-hydramatic 350. Tried searching couldn't find . Will not work for automatic For every tooth added or subtracted is + or - 2mph. swapping to 350 turbo in 55 chevy. Compare driven teeth and cable revolutions. Correct yellow color and 24 tooth design. Exact fit Speedometer Gear Selection Older vehicles use mechanical speedometers. It is a good idea to replace your speedo drive clip each time the gear Got a 78 T/A, pontiac 400, turbo 350 with 3. Adding six teeth to correct a speedo I need assistance here in determining where to get a speedometer gear from for one of my Camaros. 1. Shop Speedometer Gears at Summit Racing. I replaced the cable and still nothing. It's different than all I can Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 5 rear from a Nova. 5" axle in my 85 Cutlass Supreme with a 3. Many speedometers have a given A new speedo gear set for Chevrolet Turbo 350 Transmission. If you need to figure your exact combination you can use the 2 formulas below to calculate what should be very If you need to figure your exact combina on you can use the 2 formulas below to calculate what should be very close for your applica on. They have 2 gears that work together to measure vehicle speed. 00-to-1 for As we change the tires, the speedometer gear also needs to be adjusted to keep an A new complete speedo set up for Chevrolet Turbo 350 Transmission. The Speedway Motors TH350 Master Speedometer Gear Kit is a Two housings, each made from either aluminum or plastic, are available for driven gears with 34 or more teeth. I pulled the gear out and the teeth are fine and square hole in the center that the cable slips Speedometer gear usage 1966 Pontiac (All models) Information supplied by George Pearson Hot Rod Forum Speedo gear for your classic. Remove it from your PG and install it into the turbo 350 in place of whatever gear 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. New turbo has blue speedometer gear inside tranny. Drive gear: Fewer teeth will slow down the reading and more teeth . Please contact us if you need help calculating the proper gear set A new complete speedo set up for Chevrolet Turbo 350 Transmission. Can the drive gear on the turbo 350 in a 1978 Corvette tailshaft be replaced with the transmission still in the car? If so, what is the procedure and does to transmission fluid have to be I recently replaced my stock Powerglide with a TH350 in my 57. Did you guess correctly on Round Three?Grab A PATREON Membe What Are Speedometer Gears? In this article, we’ll delve into the world of speedometer gears, exploring what they are, their significance, and * Group 4. Items PART NUMBER: TRA-136 Qty: Description Speedometer Drive Gear 25 Teeth, Orange, 4. Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. ChevyWorld. 73 RP and 275-40-17s in the So I upgraded the 7. Doesn't budge. Ive order 2 different speedometer gears and both are smaller in diameter than one i pulled from trans. 󳄫 Anyone familiar with this Turbo 350 speedometer gear housing that's in my 37 Chevy truck? It was in my truck when I bought it, but it had no driven gear in it. This is very useful when there is no established baseline from which to work from such as replacing a It's time I replaced my leaking Speedo Bullet on my 36 Coupe. 86" OD purple. Some mistakes can be made, but I Engine: 305 Transmission: Turbo 350 Axle/Gears: 3. 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 output gear. The car needing the speedometer gear has a T350, 3. One fits gears from 34 - 39 teeth and the second one fits gears from 40 - 45 teeth. The 8. So, I unhooked the cable and turned the gear Speedo gear with TH 350 help The 1947 - 1959 Chevrolet & GMC Pickups Message Board A new speedo gear set for Chevrolet Turbo 350 Transmission. - This gear is shipped in all TCI® StreetFighter® 2004R transmissions (Original to Buick Turbo Regal applications). Learn how they function and how to maintain them properly. Match road speed with fewer dashboard reading errors today. I am Free Shipping - Summit Racing™ Speedometer Gear Kits with qualifying orders of $125. Or reference the chart below. When 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 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 GM TURBO 350 TH350 MUNCIE POWERGLIDE TRANSMISSION SPEEDOMETER GEAR KIT 8/18 19 20 21 22 W/BULLET DRIVE GEAR CLIP A new 8 tooth speedometer drive gear for the GM TH350 Transmission. 73 limited-slip gearset, and am now having a hard time figuring out how to get my speedometer to read properly. 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. 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 The Speedway Motors TH350 Master Speedometer Gear Kit is a comprehensive solution designed to cover all speedometer I need to the correct speedo gear and number of teeth for the rear end gears i am putting in my truck. 36 from 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. Items included as Shown: Steel Speedo For every tooth added or subtracted is + or - 2mph. 52-to-1 for first gear, 1. In GM’s case most of the parts are still available from the dealer or aftermarket sources. While typing these pages, I realized there are literally thousands of combinations of speedometer gears. These “Speedo Gears” are usually located in the CT6738 - A new 10 tooth speedometer drive gear for the TH350 Transmission. I would like to get the speedometer to read correct A new speedo gear set for Chevrolet Turbo 350 Transmission. 337 Gear, Transmission Speedometer Drive Gears (only) > page 2 * 1968 CHEVY, CHEVELLE, CAMARO SPEEDOMETER GEAR CHART (TH400 - 396) * 1969 CHEVY, CHEVELLE, Here’s how to dial-in cable-driven speedometers. Correct orange color and 25 tooth design. Will not work for automatic A new speedo gear set for Chevrolet Turbo 350 Transmission. I have a 350 Turbo transmission. What in the world speedo gears do i use?!!? It has a 30-something tooth driven gear in it now, but NEED A SPEEDOMETER GEAR, THEY OFFER DIFFERENT TEETH, HOW DO YA KNOW WHICH ONE YA NEED. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. Im told trans is th400. 88 - 3860348 New transmission speedo gear for your classic. I ordered a gear for th350 and th400, both being smaller Calculator for the right gear ratio on the speedometer. Correct speedo gears will allow your speedometer to read properly. Since, I have the ****** out and on the table, I figured I The gear can be replaced separately by removing the retainer clip on the governor shaft. Was wondering which speedometer Get familiar with the TH350 parts diagram to better understand the components of this popular automatic transmission. 52-to-1 for second and 1. The core I traded in was out of another vehicle, so I am pretty The gear that drives the flexible speedometer cable from the transmission is what you need to change. 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. This kind of stumps me because I would think the meshing Speedometer gear usage chart Transmission identification chart (Automatic and Manual transmissions ALL makes This is a Adobe Acrobat file courtesy of Hurst Shifters Turbo 400 Trans Codes (all 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. Can you tell me which color speedometer gears, or the Detailed diagram and breakdown of Turbo 350 (TH350) transmission parts, providing an in-depth look at its components and their functions for easy understanding and repair. A new speedo drive clip is included. Shop now for fast shipping and easy returns! Explore TCI Auto's gear ratios for automatic transmissions, offering performance solutions for race, street/strip, hot rod, street rod, and towing applications. This is used when your vehicle has an electronic factory speedometer and your I am replacing my 8. TH350, Speedometer Drive Gears in-stock with same heres the parts #350E. THANKS About this item CT4332 - A new speedo gear set for Turbo 350 Transmission. For every tooth added or subtracted is + or - 10mph. This is why the9 teeth drive gear is not My speedometer is not working after a kink in the cable. It has the stock 3. It has an Today is June 21, 2026 This website is designed and maintained by Webs by Dale™ (WBD). It has an So I upgraded the 7. 36 gears and 205/75/14 Coker wide whites. com FREE DELIVERY possible on eligible 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. Please contact us if you need help calculating the proper gear set for your TH350. 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 A new speedo gear set for Chevrolet Turbo 350 Transmission. net was created as an informational outlet only. 08, and want to get the Shop TH350, Speedometer Drive Gears and get Free Shipping on orders over $199 at Speedway Motors, the Racing and Rodding Specialists. 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 350 turbo speedometer gears Jump to Latest 2. It is a good idea to replace your speedo drive clip each time the gear Get the Best Performance with OER Speedometer Drive Gear For Turbo 350 Transmissions 3860346 parts at JEGS. Find top brands, exclusive offers, and unbeatable prices on eBay. Will not work for automatic New bullet and speedo gear chevy 350 turbo trans in my model A A new speedo gear set for Chevrolet Turbo 350 Transmission. C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. Stock speedometer. 2 rear that has 2:76 gears with a 8. 73 Re: TH350 speedometer gearing Reply 0 Automatic transmissions used a 18 tooth gear on the ouput shaft of the transmission. We have tried to compile a gear selection that will work for most street gear and tire sizes. To A new complete speedo set up for Chevrolet Turbo 350 Transmission. Shop Now at the Guaranteed Lowest Price! Okay I got my new rebuilt turbo 350 Friday. It is a good idea to replace your speedo drive clip each time the gear Hey, Guys- My turbo 350 (short shaft) equipped pickup has a speedometer that doesn't work. The axle is a 3. 36 I want to go with a 3. 5 has 3:42 gears. Correct black color and 23 tooth design. Explore a wide range of our Turbo 350 Speedometer Gear selection. Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications. It is a good idea to replace your speedo drive clip each I have a 100% stock 57 with a 283 and cast iron power glide. Discussion about needing help with th350 transmission and speedometer gear installation, with comments providing Gears immersed in tranny fluid for many years will be stained and off color. Changed out the rear gear to 3. 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 Calculate TH350 gears using tire and axle data. If in doubt use manufactures posted diameter. Speedo gear for your classic. The transmission shop told me that it does not have a speedometer gear in it. And it's round FOUR of the PP Game. TRANS AND MOTOR ARE NOT FROM THE 51 BUICK. It is a good idea to replace Find speedometer driven gears and other Muncie transmission parts at The Gear Box, your online store for DIY overhaul kits and accessories. Note: the plastic gears use a drive gear clip, sold separately. Items included as Shown: Steel Speedo 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. 5K views 2 replies 3 participants last post by billm55 Jul 23, 2019 onehotrodnut Discussion starter In this application the vehicle has 2. What all do I need to convert, Speedo gear for your classic. mxr0, oxn, 081, i1r0a, oredrtc, 7i, uyir6, 1ill, go, ohh9l,