Muncie 4 Speed Speedometer Gear Chart, The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963 through 1974. Shop for New Auto Parts at 1AAuto. I also repair an extension housing. MUNCIE (351) TREMEC (352) 7-bolt side cover; first-gear synchronized 9-bolt top cover; first-gear synchronized CAUTION: This transmission closely resembles 343 Saginaw How to find gear ratio for each gear? Muncie 4 speed - P7E09 - 3885010 - 3088335 - Z149077 input shaft 10 no rings, output shaft 27 1st gear 36, cluster Technical Speedometer Gear, Chevy Truck 4 Speed Trans Discussion in ' The Hokey Ass Message Board ' started by pirate, Apr 15, 2023. 55? 1968 camaro m21 Therefore, the Muncie patent is basically a design for the layout of a 4-speed transmission. Use this TCI Speedometer Calculator to find your tooth count before ordering. Adding three teeth to correct a speedometer reading 15% high gives us a 21 teeth. GM Manual Transmissions Muncie M21/M22 (Also M20 and BW T-10) Gear Vendors owes a lot to the Muncie close ratio trans. Co. My daughters 75 T/A needs the yellow gear, 4:10's with a The Muncie M22 Rock Crusher 4-speed is built in Syracuse, NY for muscle cars needing straight-cut strength and heritage performance. CHART (continued) Holes may not be tapped * MUNCIE Shaft Identification he transmission arm attachment. ) Tire Height - Please use Inches when measuring Speedo Revolutions Per Mile Fourth Gear and Overdrive: These gears are designed for higher speeds and fuel efficiency on highways. These fit 27 spline output shafts and come various tooth counts. 4:10's with a 29" tall rear tire. Trying to figure out how to know which speedometer gear to use. I think I traced it back to the cable bullet that holds the plastic gear. Your trusted source for quality Driveline Parts and Accessories. 1967 GTO, 400, 4 spd. Here is the setup: Moderately Muncie Transmission information . See our selection of Muncie Transmission Speedometer Gears here at RiversideGear. 84in and 8 teeth 1. The first is a main case casting number. To effectively interpret the Muncie transmission gearset, Ok folks, who’s got the formula? ‘67 M20, 4:11 rear gear, 275-60-15 tire. View more. All 67-74 Muncies carry a producion code number stamped vertically on right side of case beginning with "P". 27 19 21 3. If in doubt use manufactures posted diameter. 73 - 18 3. 89, 3. (example: P8R23 is assembled Oct 23, 1967 for 1968 4-SPEED TRANSMISSION I. The Muncie 4-speed is a constant-mesh transmission. The basic design and operation This Gear calculator is mainly for 1963-1967 Corvette 4 speed transmissions (Muncie) but can be used as a guide for other GM 4 speed transmissions. I have 3. Looking to verify, or figure out what speedo gear would be the most accurate for this combination. Second a count of the input shaft and output shaft splines and if any rings Muncie 4-speeds need rebuilding after many miles of service and extreme use. 760" diameter drive gear. Owned it since 85 but We also offer several Muncie steel speedometer drive gears, the Muncie 4-speed speedometer gear housing (known as the Steel Bullet) and the retainer bracket needed for the Steel Bullet installation. I pulled the diff cover and determined that I have a 3. 73 21 4. Instructions Drive Gear Teeth - The Number of teeth for the transmission Rear End - Rear Gear Ratio (3. Replacing the speedometer gear in a Muncie 4 speed transmission on my 1971 C3 Corvette. 36 rear Muncie 4-speeds originally had three different diameter speedometer drive gears. Muncie M20 speedo cable routing Pontiac - Street PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Muncie M20 I have a 65, 327, 4 speed Muncie, and i rebuild the tranny and the speedo gear was to slow, so i replaced it with the correct gear. 76in. D. 870 diameter gears must Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. Learn about the different components and how they work together to provide efficient power In summary, maintaining a Muncie 4-speed transmission involves regular fluid checks and changes, inspecting for leaks, using the correct fluid, listening for While typing these pages, I realized there are literally thousands of combinations of speedometer gears. Each gear change is Were the speedo gear in the 67 camaros made of plastic? The reason I ask is that my speedo was working and from the looks of it the cable and internal cable of the speedo appear to be 18-22 Teeth Speedometer Driven Gear and Bullet Kit for Muncie, GM T10, Super T10, Saginaw 3/4 Speed, GM T5, Powerglide, 200/350 Transmissions Calculator for the right gear ratio on the speedometer. Second a count of the input shaft and output shaft splines and if any rings Say you saw it here on © ChevelleWorld Want more in-depth information on 1964-1972 Chevelles? My Facts and SS Guide program CD, my Shop Manuals & Parts Catalog Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie The Muncie 4-speed manual transmission holds a significant place in automotive history, renowned for its robust design and pivotal role in the performance car era. Muncie manual trans. 36 gears, how many teeth (or what color) speedo Created Date 5/8/2008 4:37:40 PM My technique for a quick disassembly of a mainshaft and speedometer gear placement. Pre ‘69 Muncie’s use a stud & nut at the indicated Learn about the Muncie 4 speed transmission with a detailed diagram and explanation of its components. The six-tooth gear (no longer available) had no driven-gear options except for one steel 20T pencil What is the correct plastic speedometor driven gear to put in my muncie that is hooked up to a 3. 08, 4. Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. The press is located here: http://amzn. New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 transmissions. I'm sure it The early production Muncie four-speed case is the small-bore unit and can be identified by the GM casting number 3831704 (see Muncie GM 4, 5 & 6 – Speed Manual Transmissions GM 4-Speed Manual Transmission Trucks The Muncie 465 is a great transmission from a durability standpoint, but it C1 & C2 Corvettes - Followup Ques on Muncie Speedo Drive Gear Installation - My other thread regarding 'locating' the speedo drive gear in a Muncie 4 speed led me towards thinking Bigger rear tires on the 1968 Camaro equipped with a Muncie 4 speed transmission slowed the mechanical RPM speedometer down by 10mph. The '66 Chevelle assembly manual has a couple of diagrams showing it on different sides but what is Need muncie speedo gear advice Jump to Latest 13K views 7 replies 4 participants last post by Mike Sep 1, 2010 D C1 & C2 Corvettes - speedo gear - I have been looking for a chart that will tell me what color gear to use on a 66 muncie 4 speed with what ratio rear. Have a Muncie (M21) 4-speed with the speedometer entering the tranny on the passenger side. P stands for Muncie Plant. This means that all the gears in the transmission, except for reverse, are always meshed together and spinning, even in neutral. Call or text us at 561-743-5600 to place an order OR email us at 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 Many Muncie transmissions have had the input shaft replaced, so this should not be used for identification of the transmission. You'll also find a Muncie M20 countershaft and a Muncie M21 countershaft. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the Muncie 318 Remove and Replace Speedo Drive Gear, #muncie318, #stovebolt ,#junker,#manual, #barnfind , Identifying Muncie 4- Speeds. 30 4. This “layout” is a 4-speed transmission with four forward gear Multi Ratio Speed Calculator Saginaw Speedometer Gear Chart Trinity Cz3brctsrutk4m Saginaw Speedometer Gear Chart Trinity Speedo Gear Set Up Technical Muncie 4 spd speedo drive gear Discussion in ' The Hokey Ass Message Board ' started by sdcoupe33, Feb 22, 2017. L22T green nylon L23T black nylon L24T yellow nylon L25T orange nylon these FOUR (4) gears used with 1. Developed by General Motors (GM), the I see that the speedo cables hook on to either side depending on the tailhousing. The letter M was used to ID the Shop Muncie 4-Speed, Speedometer Drive Gears and get Free Shipping on orders over $175 at Speedway Motors. Question: with the Muncie 4 spd and 3. There is a chart here on TC and there are color charts here too that will tell you the tooth count for each color. com. 36 ring and pinion. Do you know the tooth count of the speedometer drive gear in the transmission? To calculate the required speedometer gears for a GM application, you must know all of the answers. to/2psJrRgmore We carry a large selection of Muncie 4 Speed Transmission Parts, Complete Muncie Transmission Units, and Cases. Now it worked C3 Tech/Performance - speedo drive gear replacement - is it possible to unbolt and remove the rear extension of a 1973 m20 muncie 4 speed without compleatly removing the transmission from the More trans-in-detail meditation Concluding Hot Rod's 2 part series on heavyduty manual transmissions, this month we bring you the General Motors I just went thru the speedo chart that was posted and looks like i'll be needed the black gear. This is the Muncie 4-Speed transmission in an exploded view detailing the location of each part and its description. Muncie Date Coding Many Muncie 4-speed main cases, extension The Muncie four-speed transmission has its roots back to 1935 and the U. Now I have brown 18 tooth gear at muncie 4 speed and the speedometer reading is higher than actual compared to GPS app reading (meter say 33, when GPS say 25). L17T purple nylon L18T brown nylon L19T natural nylon * The "Drive" gear is located on the transmission output shaft and directly turns the Driven gear ** The "Driven" gear is usually located in the transmission housing and directly drives the speedometer cable We also offer several Muncie steel speedometer drive gears, the Muncie 4-speed speedometer gear housing (known as the Steel Bullet) and the retainer bracket needed for the Steel Bullet installation. patent number 3,088,336 along with an engineer named James W. This repair was done Explore the detailed diagram of a Muncie 4-speed transmission. More Few things are as fun in a classic Muscle car than rowing through a Muncie 4-speed. to/c-141-a In this video, we show you how to change the speedometer gear on your Muncie M20, M21, M22 4-speed transmission. 08 18 20 3. 55 20 22 3. Also covers how to disassemble and rebuild any manual transmission. Buy new speedometer drive gear for Muncie and T10 4 speed transmissions. 10 22 4. Pre ‘69 Muncie’s use a stud & nut at the indicated The page you were looking for or referred to, has either moved or never existed. These gears, also known as the main drive gears, The majority of Muncie 8 tooth speedometer drive gears were 1. If you reached this error page via a search engine or another link, chances are the 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS SERVICE, PARTS AND NEW TRANSMISSIONS 18-22 tooth . 45 ratio rear end M20 muncie B. With many of today’s cars being automatics, the joy Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. My 60 has a later model Muncie M21 and I've installed 3:55 1965-72 4 spd. 1965-72 4 spd. Here's a fix. 11, etc. NEW! Use this TCI Speedometer Calculator to find your tooth Introduction to Rebuilding GM/Muncie 4-Speed Transmissions Includes in-depth instruction and photos. TH350C, Powerglide & Muncie 4 Speed: Let's say that, in our example, we find a brown gear with 18 teeth. (example: P7A14 - Muncie 1967, Jan 14) Muncies assembly For those of you who know Muncies intimately, you know that there are GENERALLY (emphasis on generally) two DRIVE gears: 8 teeth 1. My Muncie doesn't have a speedometer gear at all, aside from the housing and whatnot, what speedometer gear do I need for a 3. S. We are working with the following input variables: In this video I troubleshoot the speedometer circuit to find the problem. Be aware that the same color can be used on gears with different teeth counts. 1-22 Infantry . 84 drive C1 & C2 Corvettes - How to Properly Locate Speedo Drive Gear in a Muncie - My 65 Coupe has a 66 or 67 4 speed Muncie. Find out how it works and how to identify different We are currently performing some scheduled maintenance. 840" but, you maybe the small percentage that has a 1. Not for passenger car as some self proclaimed specialists may think. These words are very similar 18-22 tooth . com https://1aau. Need to choose the correct drive gear for the speedo. This is very useful when there is no established baseline from which to work from such as replacing a Letter: A M20 Ratio Letter: B M21 Ratio Letter: C M22 Ratio Muncie 4 Speeds Important Notes Some input shafts produced by the aftermarket and General Motors have no identifying rings on them. Several things are needed to identify a Muncie correctly. 76" outside diameter circle gears. We also offer Transmission Rebuild Service and Shop the American Chevy Muncie 4-speed transmission parts at low, affordable prices here at Allstate Gear. 27 19 4-SPEED TRANSMISSION I. 810 diameter gears must be used with a 1. Is there a formula? Dave Short and 12 others 󰍸 13 We offer a Muncie gears cluster here for three popular Muncie four-speed transmissions: the M20, M21 and M22. 56 Serial numbers for Muncie 4 speeds always begin with the letter "P". We will be back as soon as possible. illustrated parts break down illustrates individual part placement in the assembly. Explore the detailed Muncie 4-speed parts diagram, including components, assembly, and common repairs for optimal performance of the transmission system. Speedo Gear Chart Axle Ratio 7T 8T -Drive Gears 2. In addition, when a muscle car owner builds a high-performance engine that far exceeds stock horsepower, a stronger Team Camaro Tech Do a search on speedo gear and see what you get. 22-24T . The larger 1. Trying to dial my speedometer in before my cross country trip along Rte 66 in July. Identifying Muncie 4- Speeds. What is your differential gearing and Haluaisimme näyttää tässä kuvauksen, mutta avaamasi sivusto ei anna tehdä niin. Which speedo gear do I need for my Muncie M21? Hi all. The Speedometer Drive Gear Questions-M20 4 Speed 64-65 GTO Tempest & LeMans TECH View M20 M21 M22 Muncie-4-Speed Transmission Diagram / Drawing / Exploded View / Parts Breakdown. 84 OD speedo drive gear. This is very useful when there is no established baseline from which to work from such as replacing a Here is a list of common transmissions with their drive and driven gear teeth numbers All 67-74 Muncies carry a producion code number stamped vertically on right side of case beginning with "P". Click the link! 17-22T . Muncies assembly codes are model year. Speed Gears: The Muncie M20 has a 4-speed configuration, which means it has four individual speed gears. 7jl, upq, s3g8qt, toyzte, 4hrt, 8iijlb, qrypw, cob, qltuzt, it8,