To start the mainshaft disassembly, use snapring pliers to remove the 34 synchronizer snap ring. One of the best ways to identify a muncie is the casting numbers on the external components of the transmission. I convertedrebuilt a muncie m20 into a wide ratio m22 for my chevelle. Early muncie 4speed identification ecklers automotive.
The muncie 4 speed,was first designed in 1963,and lasted until 1974. One of the most common swaps involves a muncie 4 speed. The close ratio gear box,gives you a fairly high first gear,with the rest of the gears fairly close together,for less rpm drop on your top end. The primary fourspeed manual transmissions used by chevrolet are the saginaw, muncie and borg warner models, with saginaw and muncie units being specifically made for chevrolet. Overdrive is the operation of an automobile cruising at sustained speed with reduced engine. Oct 21, 2014 the muncie 4 speed is a constantmesh transmission. I am planning to disassemble my spare four speed to replace a bad bearing. Identifying muncie 4 speeds iii by paul cangialosi. Came from factory with 4 speed pulled the original engine and transmission. Jun 22, 2016 several things are needed to identify a muncie four speed transmission correctly. Remove 34 synchro hub professional mechanic tip usually the gear and 34 synchro hub dislodge if you hold third gear and gently tap on the front of the mainshaft. The early system will take the series number and add an additional number to it. The overdrive is still a 4 speed, they make 3rd one to one and 4th od. When you shift you are locking a particular speed gear to the mainshaft.
I guess i could have changed the rear end ratio from 3. And now with micro polishing of the internals questions. There is a small section of video that has no sound due to the artist no longer honoring his agreement with me. Automobile parts and service toggle navigation community chevy automotive sales inc. Brand new overdrive equivalent muncie 4 speed ebay.
Muncie transmissions are known for both highperformance and heavyduty applications. Super pro roaddrag race muncie super case m22 rockcrusher. Tony vescio on gm 1963 to 1974 automatic to muncie 4 speed complete conversion swap kit. I know it doesnt have the good old muscle car 4 speed look, but it has overdrive. The muncie 4 speed transmission from general motors is one of the most popular and widely used transmissions in the racing and rodding industry. Find great deals on ebay for muncie 4 speed and muncie 4 speed transmission. It now has a 350 turbo which i would like to swap out for a muncie 4 speed. No other book goes into this much detail on the identification of the muncie 4 speed, available parts, selection of gear ratios, and the rebuild process. I have a 1973 z28 bought new i have a 383 500 horsepower in it. Transmission expert and veteran author paul cangialosi has created an indispensible reference to muncie 4speeds that guides you through each crucial stage of the rebuild process.
Get your kindle here, or download a free kindle reading app. Rates for rebuilding are available by calling toll free 18776144327 and our friendly staff will be happy to discuss your muncie and its needs, and then quote you our shop rate and an estimate of total. Free catalog download is at muncie 4 speed synchronizer sizing and matching,deburring gears. Comes with the shifter and grip, as well as a new in the box correct shift rod assembly correct for this application. Please know that your positive feedback and 5 star rating on ebay to us is appreciated, vital and very valuable to the continued success of our business. The 34 slider and keys fell out when i removed the mainshaft. Early muncie side covers had a stud and the shift arm attached with a nut on the stud while the 1969 and later model side covers had a hole and the shift arms attached with a bolt. Discover muncie 4 speed on sale right here with the biggest variety of muncie 4 speed anywhere online. This had the same gear ratios as the m21 but with a heavy duty gearset. Will fit all m21 and m22 transmissions with the 1 counter shaft bore. How to mate a muncie fourspeed with an ls engine hot rod.
Successfully diagnosing transmission problems is directly related to how well you understand how this transmission works. The r10 overdrive unit will be cleaned, inspected and worn parts replaced as needed. The 1963 transmission had a smaller front input shaft bearing and a specific front bearing retainer with a smaller outside diameter than the muncie transmissions from 1964 and up. The device for achieving an overdrive transmission was usually a small separate gearbox. Awesome pro tour 1967 chevrolet camaro rally sport powered by a show and go ls1 engine, custom built muncie 4 speed manual transmission with overdrive and a bullet proof 9 inch rear with a 3.
Jeff collins on racing muncie slick shift clutchless super duty m23 super case 4speed drag racing rockcrusher. If you want to learn about this stuff download our rpm calculator software for windows. No other book goes into this much detail on the identification of the muncie 4speed, available parts, selection of gear ratios, and the rebuild process. One of the most common swaps involves a muncie 4speed. Inexchange for fords 10speed transmission, general motors will let ford use its.
Muncie 4speed transmissions by paul cangialosi overdrive. While the existing case limits our ratio opportunities, we can build a gearset with approximately the following ratios. From short tracks to drag strips and car shows to museums, the muncie transmission can be found in a variety of vehicles. These words are very similar for the m20 and t10 but with some slight ratio differences depending on model. It was primarily designed as a road race transmission. We specialize in classic and current musclecar manual. To start the mainshaft disassembly, use snapring pliers to remove the 3 4 synchronizer snap ring.
These gear boxes were used when power levels exceeded the limits of the early borg warner t10 4 speed. Gasser king on gasser muncie super duty m23 4 speed. Pdf download munice 4 speed transmissions free ebooks pdf. Add to that, at 65mph the engine was running 3,500rpm couldnt stand the noise. Our experienced technicians will completely renew your muncie to factory original, in most cases, better than original condition. Muncie transmissions are known for both highperformance.
Muncie m22 4 speed wide ratio gear set, 10 spline, gkm22w10. They make 3rd gear the overdrive gear to get around this, and thus the shift pattern is all screwed up. Typical muncie 4speed, passenger side the muncie transmission was an aluminum main caseextension housing, sideloaded transmission with a sidelever shift linkage. Units will be disassembled, cleaned and rebuilt with new bearings, seals, gaskets and syncros.
The reason is that 4th gear on a muncie style trans locks the input and output shafts together. Save muncie 4 speed rebuild kit to get email alerts and updates on your ebay feed. Installing a 40 tooth reluctor and vss in a muncie 4 speed. Faqs muncie 4 speed transmissions and rebuild kits. Overdrive m21 muncie chevy message forum restoration. Muncie 4 speed howling chevy message forum restoration. The book gives lots of good information on all kinds of stuff about muncies, and the step by step disassembly and reassembly portion is great and has good pictures. Contact muncie 4 speed transmissions and rebuild kits. Gm automatic overdrive transmission builders and swappers guide sa design. Identifying muncie 4 speeds iii by paul cangialosi the most popular question has to be that everyone thinks they have the famous rockcrusher m22 4 speed. The muncie was the top highperformance manual transmission gm offered in its muscle cars of the 60s and early 70s. Muncie 4 speed community chevy automotive sales inc. The muncie 4speeds, m20, m21, and m22 are some of the most popular manual transmissions ever made and continue to be incredibly popular.
Saginaw and borg warner models are normally used on general purpose applications. A833 rpo my6 or mm7 4speed longitudinal a833 overdrive transmission made. Ironically, the muncie was designed based of of the t10 using its same basic layout. The 350 chevy came stock with the muncie m20 or m21 4speeds, the borgwarner t10 and super t10 4 speeds, and the saginaw 4speed. It was actually based on the t10 design and uses the same basic gear layout. We carry a large selection of muncie 4 speed transmission parts, complete muncie transmission units, and cases. Remove 3 4 synchro hub professional mechanic tip usually the gear and 3 4 synchro hub dislodge if you hold third gear and gently tap on the front of the mainshaft. All new overdrive equivalent muncie 4 speed attention gm owners. The new chevy zz4 engine and kugel independent rear end are new modern components the muncie just didnt fit in. Gm manual transmissions muncie m21m22 also m20 and bw t10 gear vendors owes a lot to the muncie close ratio trans.
General motors 19631974 general motors high performance auto gear equipment 530 state fair boulevard, syracuse, new york 204 800 6343001, inside new york. Muncie 4speed replaced with keisler 5speed hotrod hotline. Craigslist search, craigslist is no longer supported. The muncie 4speed transmission from general motors is one of the most popular and widely used transmissions in the racing and rodding industry. A muncie differs from a saginaw transmission in that its reverse lever is in the tail housing, not the side cover. Paul cangialosi shares some of his muncie 4 speed rebuild upgrade tips.
Looking at it closely, with a bit of work, you could use mostly all of your existing 4spd muncie stuff, even the cross member and perhaps the driveshaft. Unfollow muncie 4 speed transmission to stop getting updates on. Mark a jones deltona florida on auto gear super case m22z rock crusher 4speed. If you buy a muncie rebuild kit online its plug and play with the help of this book. I was hoping that an overdrive would fit on the side of the sm420 where the pto cover is rather than the back of the tranny or transfer case. Jeff collins on new auto gear super case muncie m22 4 speed rockcrusher streetstrip. They werent very common, shifters also hard to find unless reconfiguring can be done. Some also used a new process 4 speed of the same arrangement. Muncie 4speed manual transmission auto gear equipment. Muncie 4 speed transmissions were used in general motors cars from 1963 to early 1975.
The 3 4 slider and keys fell out when i removed the mainshaft. Therefore without a total redesign 4th gear cannot be overdrive. Transmission expert and veteran author paul cangialosi has created an indispensible reference to muncie 4 speeds that guides you through each crucial stage of the rebuild process. I know there are a lot of threads on this topic but it is a tricky one.
Determine your engines rpm based on the transmission gear ratio, tire height, mph and the. All m2122 have the same 22% upshift and 28% downshift spread as the gear vendors. The saginaw is a light and medium duty transmission while the. Waiting on new input nut for those that want to point it out that cone is not on. The muncie 4 speed was created in response to the engine power levels in gm vehicles exceeding the limits of an earlier transmission, the borg warner t10 4 speed. If you want to learn about this stuff download our rpm calculator software for windows its free. Since your muncie or borgwarner is stronger than any nonrace 5 or 6 speed, the gear vendors is just he right way to get overdrive in your gm manual. Gmc chevy muncie 318 transmission rebuild kit 19541969 3speed w. It is a good idea to understand the basics of your muncie 4speed before you start rebuilding the transmission. How to disassemble, clean, and rebuild a muncie 4speed. General motors is an innovator of automatic transmissions, introducing the hydra matic in 1940. How to identify chevy 4 speed transmissions it still runs. Whether it was a series of lucky choices, or happy accidents, the 1957 design allowed for improvements.
Not cheap though, even with a budget deal youll be into it for 23 34 of the price of a tremec 5 speed. Nov 29, 2014 paul cangialosi discusses the features of the drag special muncie m22 4 speed and explains some of his basic rebuilding tips. Borg warner t86 3 speed and r10 overdrive nash healey rebuild. With such high usage of this transmission, the replacement and aftermarket. If you have a need to install a 40 tooth reluctor and vss in a muncie 4 speed the one i modified was the later series muncie 4 speed with the standard size output shaft it can be done pretty painlessly. Imo its main appeal is to guys with restored chevelles and camaros that want to retain a muncie but have the od. Though i may look into the gearvendors because they claim that you install on the back of the t. A muncie is not going to hold up to 500 hp and slicks, but. Transmissions are an essential part of hot rod builds. Although the muncie 4 speed found it easier to handle engines growing power, its design borrowed from that of the t10 it was replacing and even used the same basic layout. Muncie 4 speed transmission parts,gears,bearing kits,synchro rings and more. Im sure they didnt come out till mid or late 63, you might have a t10, unless its not a stock original tranny.
Other muscle car transmissions of that era, such as the ford toploader and mopar a833, left no room for improvements because of the layout and initial design of their. Bolts in and move crossmember to match and get driveshaft shortened. I built my coupe old style as you can see, and i thought the muncie would fit that bill. Midwest muncie muncie 4 speed transmissions and rebuild kits. Muncie 4 speed transmission rebuild kit m20 21 22 for 78 or 1 pin. Riversidegear offers complete muncie remanufacture service. Any variation of that gear will have a letter after the 12. I have a 86 2 wheel drive blazer with a moderately built 350.
This means that all the gears in the transmission, except for reverse, are always meshed together and spinning, even in neutral. The recommend it only for people who have too much money already invested in their rear driveline to redo it. The more interesting component they have is a m20 wide ratio gearset with the reduced helical gear angle of the m22. Biggest problem is the shifter location for the t5 with a bench seat. The primary four speed manual transmissions used by chevrolet are the saginaw, muncie and borg warner models, with saginaw and muncie units being specifically made for chevrolet. Muncie 4 speed transmissions and parts riverside gear. You can buy an overdrive gearset for a muncie 4 speed that gives you an overdrive gear in 4th theres still just 4 speeds.
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