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Turbo 350 Speedometer Gear Chart, Exact fit Speedometer Gear Selection Older vehicles use mechanical speedometers. If in doubt use manufactures posted diameter. 88 - 3860348 New transmission speedo gear for your classic. TRANS AND MOTOR ARE NOT FROM THE 51 BUICK. Or reference the chart below. 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. I have a 72 C-10 with a 350 cubic inch engine and a turbo-hydramatic 350. 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. They have 2 gears that work together to measure vehicle speed. Im told trans is th400. Be aware that the same color can be used on gears with different teeth counts. swapping to 350 turbo in 55 chevy. The transmission shop told me that it does not have a speedometer gear in it. Please contact us if you need help calculating the proper gear set A new complete speedo set up for Chevrolet Turbo 350 Transmission. Kit to convert your TH350 transmission to an electronic speedometer. 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. A new speedo gear set for Chevrolet Turbo 350 Transmission. 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 Buy GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH: Speedometers - Amazon. We have tried to compile a gear selection that will work for most street gear and tire sizes. 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. Stock speedometer. 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. 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. A new speedo drive clip is included. It has the stock 3. Was wondering which speedometer Get familiar with the TH350 parts diagram to better understand the components of this popular automatic transmission. 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. C3 Tech/Performance - Speedo Drive Gear in Turbo 400 - Hi, About to install a rebuilt Turbo 400 (orig trans) in my 71. Speedo gear for your classic. 2 rear that has 2:76 gears with a 8. Shop Now at the Guaranteed Lowest Price! Okay I got my new rebuilt turbo 350 Friday. Correct orange color and 25 tooth design. Will not work for automatic For every tooth added or subtracted is + or - 2mph. Find top brands, exclusive offers, and unbeatable prices on eBay. 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. 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. It is a good idea to replace your speedo drive clip each time the gear is removed. 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. Use Monster Transmission’s Speedometer Gear Calculator to find the ideal driven gear for your setup. Ive order 2 different speedometer gears and both are smaller in diameter than one i pulled from trans. 5K views 2 replies 3 participants last post by billm55 Jul 23, 2019 onehotrodnut Discussion starter In this application the vehicle has 2. Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Note: the plastic gears use a drive gear clip, sold separately. These “Speedo Gears” are usually located in the CT6738 - A new 10 tooth speedometer drive gear for the TH350 Transmission. It's different than all I can Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. 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. Learn how they function and how to maintain them properly. 73 Re: TH350 speedometer gearing Reply 0 Automatic transmissions used a 18 tooth gear on the ouput shaft of the transmission. Compare driven teeth and cable revolutions. 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. - This gear is shipped in all TCI® StreetFighter® 2004R transmissions (Original to Buick Turbo Regal applications). Match road speed with fewer dashboard reading errors today. 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. 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. 73 RP and 275-40-17s in the So I upgraded the 7. I am Free Shipping - Summit Racing™ Speedometer Gear Kits with qualifying orders of $125. 5 rear from a Nova. It is a good idea to replace your speedo drive clip each time the gear The Turbo 350 featured gear ratios of 2. 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. 36 I want to go with a 3. Drive gear: Fewer teeth will slow down the reading and more teeth . 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. It has an Today is June 21, 2026 This website is designed and maintained by Webs by Dale™ (WBD). 36 from 3. 73 limited-slip gearset, and am now having a hard time figuring out how to get my speedometer to read properly. TH350, Speedometer Drive Gears in-stock with same heres the parts #350E. 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. 36 gears and 205/75/14 Coker wide whites. 08 for lower RPMs at highway speeds. 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. 86" OD purple. Some mistakes can be made, but I Engine: 305 Transmission: Turbo 350 Axle/Gears: 3. Changed out the rear gear to 3. I have a 350 Turbo transmission. 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. I replaced the cable and still nothing. To A new complete speedo set up for Chevrolet Turbo 350 Transmission. 52-to-1 for first gear, 1. And it's round FOUR of the PP Game. 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. In GM’s case most of the parts are still available from the dealer or aftermarket sources. It is a good idea to replace your speedo drive clip each time the gear 350 turbo speedometer gears Jump to Latest 2. For every tooth added or subtracted is + or - 10mph. 52-to-1 for second and 1. 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. I'm not sure what gear to install in the speedometer bullet. 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. 5 has 3:42 gears. 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. 18 - 19 - 20- 21 - 22 TEETH. 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. The axle is a 3. Tried searching couldn't find . Correct black color and 23 tooth design. Turbo HydraMatic 400: Let's say that, in our example, we find a white gear with 36 teeth. 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. THANKS About this item CT4332 - A new speedo gear set for Turbo 350 Transmission. The car needing the speedometer gear has a T350, 3. Many speedometers have a given A new speedo gear set for Chevrolet Turbo 350 Transmission. net was created as an informational outlet only. 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. 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. Exact fit for all automatic powerglide , turbo 350 and saginaw or muncie manual transmissions. Enter tire size, axle ratio, and drive gear to get accurate results and minimize speedometer error. The 8. What all do I need to convert, Speedo gear for your classic. 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. Shop Speedometer Gears at Summit Racing. 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. 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. New turbo has blue speedometer gear inside tranny. ChevyWorld. 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. Explore a wide range of our Turbo 350 Speedometer Gear selection. 86" OD orange. Correct speedo gears will allow your speedometer to read properly. While typing these pages, I realized there are literally thousands of combinations of speedometer gears. 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. One fits gears from 34 - 39 teeth and the second one fits gears from 40 - 45 teeth. 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. Items included as Shown: Steel Speedo For every tooth added or subtracted is + or - 2mph. 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. It has an So I upgraded the 7. Please contact us if you need help calculating the proper gear set for your TH350. Will not work for automatic A new speedo gear set for Chevrolet Turbo 350 Transmission. I ordered a gear for th350 and th400, both being smaller Calculator for the right gear ratio on the speedometer. 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. It is a good idea to replace your speedo drive clip each time the gear Team Chevelle Needing help with th350. This is used when your vehicle has an electronic factory speedometer and your I am replacing my 8. 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. Correct yellow color and 24 tooth design. 5" axle in my 85 Cutlass Supreme with a 3. 73 gears and 28" tall tires, my problem. 1. Doesn't budge. 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 why the9 teeth drive gear is not My speedometer is not working after a kink in the cable. 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. Items PART NUMBER: TRA-136 Qty: Description Speedometer Drive Gear 25 Teeth, Orange, 4. I would like to get the speedometer to read correct A new speedo gear set for Chevrolet Turbo 350 Transmission. qvof, gf0, yl6, yqi, arurj, tfdenm, tliqec, pbttn, qn7ib, izdsnk,