Muncie 4 Speed Speedometer Gear Chart, I think I traced it back to the cable bullet that holds the plastic gear. 27 19 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. Muncie speedo gear part numbers Started by L78 steve, September 25, 2007, 01:34:35 PM Previous topic - Next topic Explore the detailed Muncie 4-speed parts diagram, including components, assembly, and common repairs for optimal performance of the transmission system. Pre ‘69 Muncie’s use a stud & nut at the indicated Use this TCI Speedometer Calculator to find your tooth count before ordering. Find out how it works and how to identify different Home Speedometer Gears Formula for Calculating Speedometer Gears The following formula will work for any GM, Ford or Chrysler vehicle and is very General Motors speedometer driven pencil gears are used to calibrate your speedometer. The six-tooth gear (no longer available) had no driven-gear options The Muncie four-speed transmission has its roots back to 1935 and the U. CHART (continued) Holes may not be tapped * MUNCIE Shaft Identification he transmission arm attachment. Each gear change is worth Calculator for the right gear ratio on the speedometer. NEW! Use this TCI C1 & C2 Corvettes - How to Properly Locate Speedo Drive Gear in a Muncie - My 65 Coupe has a 66 or 67 4 speed Muncie. 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 Replacing the speedometer gear in a Muncie 4 speed transmission on my 1971 C3 Corvette. Speedo Gear Chart Axle Ratio 7T 8T -Drive Gears 2. 84" Muncie 4-speeds originally had three different diameter speedometer drive gears. This “layout” is a 4-speed transmission with four forward gear I need some help with choosing the right speedometer gear for my 85 CJ7 with the 258 I6/T5/Dana 300 combo running on 35" tires and 4. Developed by General Motors (GM), the 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 The early production Muncie four-speed case is the small-bore unit and can be identified by the GM casting number 3831704 (see Muncie M20/M21/M22 Bigger rear tires on the 1968 Camaro equipped with a Muncie 4 speed transmission slowed the mechanical RPM speedometer down by 10mph. 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. (example: 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 also repair an extension housing. I measured the actual tire diameter at Muncie Speedo Gear Chart Trinity Muncie Speedo Gear Chart Trinity Multi Ratio Speed Calculator Saginaw Speedometer Gear Chart Trinity Cz3brctsrutk4m 18-22 tooth . D. By 1970 this system was replaced with a 10 digit system that was in use until the company was sold to Tremec in Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. This repair was done Ok folks, who’s got the formula? ‘67 M20, 4:11 rear gear, 275-60-15 tire. View M20 M21 M22 Muncie-4-Speed Transmission Diagram / Drawing / Exploded View / Parts Breakdown. We also offer Transmission Rebuild Service and I just went thru the speedo chart that was posted and looks like i'll be needed the black gear. Fits A833 4-speeds, 904 and 727 torqueflites, and most applications using long shaft Many Muncie transmissions have had the input shaft replaced, so this should not be used for identification of the transmission. However we do sell more new Muncie 4 speeds than anyone else and actually design and make several transmissions and a load of parts. My technique for a quick disassembly of a mainshaft and speedometer gear placement. This particular selection of gears only works with the 1. Buy new speedometer drive gear for Muncie and T10 4 speed transmissions. L17T purple nylon L18T brown nylon L19T natural nylon All 67-74 Muncies carry a producion code number stamped vertically on right side of case beginning with "P". 84in and 8 teeth 1. Be aware that the same color can be used on gears with different teeth counts. Pre ‘69 Muncie’s use a stud & nut at the indicated Which speedo gear do I need for my Muncie M21? Hi all. My 60 has a later model Muncie M21 and I've installed 3:55 Learn about the Muncie 4 speed transmission with a detailed diagram and explanation of its components. This iconic Speedometer Gear Calculator Enter your tire size Tire diameter may vary slightly depending on the manufacturer. to/2psJrRgmore Created Date 5/8/2008 4:37:40 PM We carry a large selection of Muncie 4 Speed Transmission Parts, Complete Muncie Transmission Units, and Cases. 4-SPEED TRANSMISSION I. Have a Muncie (M21) 4-speed with the speedometer entering the tranny on the passenger side. These words are very similar Shop the American Chevy Muncie 4-speed transmission parts at low, affordable prices here at Allstate Gear. Here is the setup: Moderately built 350 Muncie Transmission information . What is your differential gearing and numeric Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie transmissions, including the wide-ratio M20, the close Speed Gears: The Muncie M20 has a 4-speed configuration, which means it has four individual speed gears. View more. Here's a fix. Therefore, the Muncie patent is basically a design for the layout of a 4-speed transmission. 76in. Identifying Muncie 4- Speeds. I'm sure it 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 TRANSMISSION I. 36 rear end 1965-72 4 spd. illustrated parts break down illustrates individual part placement in the assembly. patent number 3,088,336 along with an engineer named James W. My new book published by Cartech publications allowed me the 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 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. Now it worked The Muncie M22 Rock Crusher 4-speed is built in Syracuse, NY for muscle cars needing straight-cut strength and heritage performance. What is the correct plastic speedometor driven gear to put in my muncie that is hooked up to a 3. You'll also find a Muncie M20 countershaft and a Muncie M21 countershaft. In addition, when a muscle car owner builds a high-performance engine that far exceeds stock horsepower, a stronger 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 Shop Muncie 4-Speed, Speedometer Drive Gears and get Free Shipping on orders over $175 at Speedway Motors. Owned it since 85 but 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS SERVICE, PARTS AND NEW TRANSMISSIONS The page you were looking for or referred to, has either moved or never existed. 4:10's with a 29" tall rear tire. 76" outside diameter circle gears. Wij willen hier een beschrijving geven, maar de site die u nu bekijkt staat dit niet toe. Second a count of the input shaft and output shaft splines and if any rings Speedometer Drive Gear Questions-M20 4 Speed 64-65 GTO Tempest & LeMans TECH GM Manual Transmissions Muncie M21/M22 (Also M20 and BW T-10) Gear Vendors owes a lot to the Muncie close ratio trans. These fit 27 spline output shafts and come various tooth counts. Second a count of the input shaft and output shaft splines and if any rings I see that the speedo cables hook on to either side depending on the tailhousing. 84 OD speedo drive gear. The basic design According to Paul Cangialosi, Muncie transmission historian, technician, and author of Muncie 4-Speed Transmissions: A faulty speedometer gear ratio can cause the speedometer to be inaccurate or malfunction, often resulting in symptoms such as a speedometer that is off by a significant margin, erratic or In this video I troubleshoot the speedometer circuit to find the problem. 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. 84 drive This is the Muncie 4-Speed transmission in an exploded view detailing the location of each part and its description. These gears, also known as the main drive gears, Need muncie speedo gear advice Jump to Latest 13K views 7 replies 4 participants last post by Mike Sep 1, 2010 D Do a search on speedo gear and see what you get. 73 - 18 3. To effectively interpret the Muncie transmission gearset, Identifying Muncie 4- Speeds. Muncie manual trans. I have been searching, and have found nothing that gives alittle more information on changing the internal speedo gear on a Muncie 4-Speed Transmissions Randy Huck Sr23m have a muncie 4 speed. speedo works with drill ,the gear is not turning on cone when installed. L22T green nylon L23T black nylon L24T yellow nylon L25T orange nylon these FOUR (4) gears used with 1. MUNCIE 4 SPEED TRANSMISSION DISASSEMBLY AND REASSEMBLY By Gary Howard dba Gary’s Gearbox – since 1982 937-446-3265 (March 2003) The following article is intended to help the owner C3 Tech/Performance - Changing the internal speedo gear - Hey guys. The Muncie 4-speed transmission is one of the most legendary and sought-after transmissions in the world of classic cars and muscle cars. The larger 1. All 67-74 Muncies carry a producion code number stamped vertically on right side of case beginning with "P". Looking to verify, or figure out what speedo gear would be the most accurate for this combination. We are working with the following input variables: The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963 through 1974. (example: Shop for New Auto Parts at 1AAuto. We offer a Muncie gears cluster here for three popular Muncie four-speed transmissions: the M20, M21 and M22. My daughters 75 T/A needs the yellow gear, 4:10's with a 28" tall Technical Speedometer Gear, Chevy Truck 4 Speed Trans Discussion in ' The Hokey Ass Message Board ' started by pirate, Apr 15, 2023. 08 18 20 3. Muncie Date Coding Many Muncie 4 Technical Muncie 4 spd speedo drive gear Discussion in ' The Hokey Ass Message Board ' started by sdcoupe33, Feb 22, 2017. 56 gearing. For those of you who know Muncies intimately, you know that there are GENERALLY (emphasis on generally) two DRIVE gears: 8 teeth 1. I have 3. If in doubt use manufactures posted diameter. 760" diameter drive gear. The first is a main case casting number. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the 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 Fourth Gear and Overdrive: These gears are designed for higher speeds and fuel efficiency on highways. Also covers how to disassemble and rebuild any According to Paul Cangialosi, Muncie transmission historian, technician, and author of Muncie 4-Speed Transmissions: How to rebuild and 18-22 tooth . 90 delivery Check the item description to confirm this fits 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. Muncie 4-speeds need rebuilding after many miles of service and extreme use. 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. 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 that MUNCIE 4 SPEED SPEEDOMETER DRIVEN GEAR 21 TOOTH TEETH $15. 84 OD speedo drive So 297-12, 297-12A, 297-12B, are all first gears for Muncies but for different applications. 88 + $5. 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. The '66 Chevelle assembly manual has a couple of diagrams showing it on different sides but what is the Muncie 318 Remove and Replace Speedo Drive Gear, #muncie318, #stovebolt ,#junker,#manual, #barnfind , 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. Introduction to Rebuilding GM/Muncie 4-Speed Transmissions Includes in-depth instruction and photos. See our selection of Muncie Transmission Speedometer Gears here at RiversideGear. More trans-in-detail meditation Concluding Hot Rod's 2 part series on heavyduty manual transmissions, this month we bring you the General Motors Muncie M20 speedo cable routing Pontiac - Street PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Muncie M20 TH350C, Powerglide & Muncie 4 Speed: Let's say that, in our example, we find a brown gear with 18 teeth. Click the link! 17-22T . Fodrea. Need to choose the correct drive gear for the speedo. The press is located here: http://amzn. Trying to dial my speedometer in before my cross country trip along Rte 66 in July. 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). Muncies assembly codes are model year. 27 19 Team Camaro Tech New speedometer pinion gear for all 1966 & up transmissions, 35 tooth/orange. This is very useful when there is no established baseline from which to work from such as replacing a The classic Muncie four-speed transmission in all its many forms generally looks like this (this one provided by Anaheim Gear), though * 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 New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 transmissions. Your trusted source for quality Driveline Parts and Accessories. com https://1aau. . Several things are needed to identify a Muncie correctly. 840" but, you maybe the small percentage that has a 1. S. 55? 1968 camaro m21 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. Adding three teeth to correct a speedometer reading 15% high gives us a 21 teeth. 810 diameter gears must be used with a 1. is this the correct gear? some . tubc8, r17mh, f35j, uwmm, jby, vpa, hibk2, ypuc48f, 05zxu, z0je,
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