(PhotoCourtesy Eric Davidson), This is a close-up of the WintersFoundry logo with a casting date ofJuly 27, 1964. Equipped with a GNS 430W, PMA 800B audio panel, JPI EDM 800 engine monitor, KAP 150 autopilot, Strike Finder .See More Details. [Click here to read more], Unless you are MacGyver, it takes more than a hammer and some duct tape to build an engine. Lead time 4-6 weeks. Gear Kits(Close Ratio = 26T Input Shaft, Wide Ratio = 21T or 24T Input Shaft), (Close Ratio + 26T Input Shaft, Wide Ratio = 21T or 24T Input Shaft), 40312 County 8 Blvd, Zumbrota, MN 559928 am - 5 pm CST507-824-2012, Toll Free Phone: 1-888-824-2012info@midwesttrans.com, 11071 93rd Ave N Maple Grove, MN 553698 am - 5 pm CST763-425-7474Toll Free Phone: 1-800-444-0755info@midwesttrans.com, Contact Us | FAQ | Warranty | Privacy Policy | Terms & Conditions, Automotive Repair Shop Website Design by One Wheel Marketing, Rebuilt Transmission 1966-1974 M21 27 Spline, Rebuilt Transmission M22 1966-1974 Rock Crusher, M20 (63-65) (80mm OD Input Bearing)*HD Kits Available, M21 M22 (66-74) (7/8 Dia. From 1967 to 1968, the serial number used year, month, and day designators; the month designator is now a letter. It has a seven-digit serial numbercast into the case on the passengersside. Summit also offers a wide variety of slip and differential yokes for Muncie four-speeds. Multiple ratios, Heavy Duty case, center plate and tail. Guide to Muncie M20, M21, and M22 Four-Speed Transmissions. 1. Its quite common to see later cases replace early ones for this reason. From left to right are the three basic Muncie input shaft/countershaft combinations. In the middle is the M21 countershaft and input shaft. The same prep holds true for the second-gear, synchro and slider assembly. The 6207 bearing is the next smaller standard size that uses the same bore. You don't have to search the classifieds or a junk pile to find a suitable bellhousing for your Muncie M20, M21, or M22. The boltbosses in some places are shaped alittle differently than earlier and latercastings. It was used primarily with the 26-spline input shaft and larger 32-spline output-shaft models, so it appears that they were looking to optimize strength everywhere possible since the 454 engine was introduced in 1970. The Gear Vendors system requires all of these parts, including the yoke, wiring harness, speedometer cable controller harness, and shifter ball with activation button. Using parts from Hooker, Aeromotive, Holley, Gearstar, Flex-A-Lite, and Chevrolet Performance, the swap only requires a few holes drilled and a bit of exhaust pipe fitted to make it happen. According to Cangialosi, GM took the basic T-10 design and beefed it up to conceive the Muncie M20 and M21 four-speed transmissions, which arrived in 1963. In preparation for the connecting of the input shaft with the mainshaft, the synchronizer slider ring is moved forward to help make the connection between these two key shafts. Retaining the 4-speed with your LS swap is a perfect blend of old and new. P7 (1967model year) was stamped on a 19681969 3925660 case. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. The way to differentiate a 1966 3885010 case from a 1967 is by the serial number. Summit Racing Equipment inventories all kinds of cast-aluminum and steel bellhousings for the Muncie. CALL JEFF (262)893-9812 for details. Casting 3846429 is a wide-fin casting.The lower end is much more gussetedand reinforced than a typical casting. I learned from speaking to many builders that the rare 3864848 case seems to be in a few Corvettes and full-size GM cars with big-block engines. Having issues diagnosing problems with your M21 M22 4 Speed Muncie Manual Transmission? However, there seems to be a big overlap from 1969 to 1970, with both of these cases. Muncie mastery is only moments away. Looking for a Muncie shifter engineered to fit within your budget? View Photos. 110 results for muncie 4 speed transmission m22 Save this search Shipping to: 23917 Shop on eBay Brand New $20.00 or Best Offer Sponsored Find parts that fit We need more information about your vehicle to confirm fit. The bearingbore is smaller than the Munciecase on the right. By 1963, wider gears improved the T10; this meant that the front bearing had to get narrow to compensate for the size difference of the front portion of the countergear. But [Click here to read more], Depending upon your approach, the crankshaft of your small-block Chevy can be either one of the cheapest or the most expensive power products youll ever buy. On episode 11 of HOT ROD Garage, Mike Finnegan rounds out a bunch of El Camino upgrades with a big heart transplant. SHARE THIS ARTICLE:Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. Contrary to popular belief, you cannot tell a 4-speed Muncie is an M22 by looking at the input shaft splines. 1969, only M22 transmissions had drain plugs. Because 1964 and 1965 shared the same casting, sometimes it is hard to tell the production year of the case. Sort by. 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Black Nylon. Z RATIO (1st-2.984, 2nd-2.043, 3rd-1.468, 4th-1.00), W RATIO (1st-2.559, 2nd-1.752, 3rd-1.366, 4th-1.00) Pair it with a faster axle, say a 3.54 for street or a 4.11 for the strip, X RATIO (1st-2.199, 2nd-1.506, 3rd-1.174, 4th-1.00) For. A bad rear seal can let air into the transmission, leading to front case leaks. On the right is the small input shaft bearing, which is 1963 only. If you examine the 1966-'70 wide-ratio M20 input shaft, there are two grooves cut amid the 10 splines. These transmissions probably were assembled with special alloy gears, because the case casting is identical to the 3851325 as well. On the right is the small input shaft bearing, which is 1963 only. The body has been mounted onto a dolly that allows it to be moved and transported around the shop or to [Click here to read more], The first thing to remember when searching for a big-block distributor is that there are two different lengths: one for standard-deck (short) engines and one for tall-deck engines. This means the Muncie was assembled December 13, 1967, for the 1968 model year. Click Image For More Details: Reverse Gear Set Muncie 4 Speed ON SALE NOW. It takes a great deal of research as well as experience to get a feel for General Motors intentions when it comes to case casting numbers. By late 1965, the 396 Turbo Jet engine, rated at 425 hp, was introduced. The smaller 6207-type bearing replaced the larger 6307 bearing in 1963. Remove the side cover and forks for a look at the geartrain. Every component is new, there is no core charge. A-SEDAN. If you have a Muncie dated with a December build date it was actually built the previous year. High Performance Forged Synchronizer Rings made by Synchroking! Casting 3857584 is pretty muchidentical to the wide-fin 3846429tail. 3925660 main case from the Muncie Plant and has a passenger side speedo gear tail shaft housing #3846429. Notice their circled Wlogo. Cases are either small-bearing (1963) or large-bearing (1964-'74). Gear ratios are the same as the close-ratio M21. Sidecovers are often swapped from a replacement transmission with simply because it is easy to do. This product cannot be purchased. $14.95. The speedometer was moved tothe passengers side and the upperportion had a gusset installed thatfilled in the area between the shiftermounting holes. When a Muncie 4-speed is assembled from the factory, all of the bolts that are used to assemble the transmission generally have certain manufacturers logos on them. Check if this part fits your vehicle. Move the spring arms from side to side to make sure there is full movement/lubrication in the detent for each of the gears. The tailhousing slips on in this manner. We offer many high quality Muncie 4 speeds for your 60's to mid 70's GM car. If you arerebuilding your Muncie and you donot have this type of cover pin, put iton your shopping list. A pocket bearing that connects the input shaft with the main shaft is outfitted with a series of roller bearings trapped inside a cage retainer. Remember that all of the bolts used to hold the midplate in position would have to be removed to install the tailhousing. High Performance Forged Synchronizer Rings made by Synchroking! This move from Patent Pending to Patent Number is documented on actual Muncie main case castings. a new transmission as a standard replacement unit with a 10 spline Creators of the JT5 Jaguar 5 Speed, new heavy duty M22 Muncie transmissions, rebuild kits for the Muncie, Super T10, T5 and Ford Toploader, books and Youtube videos. Cars. Casting 3831731 is flipped upsidedown so you can read the number onthe tail. 8. You're going to find various combinations of main cases, tailshaft housings, and side covers coupled with variations inside of each case. 2-Key & Spring Kits. PEND. We are still making some of our parts which are available in our Webstore.Feel free to contact us with any questions. New F22 Series PTO for Ford's 10-speed Transmissions in F-650 and F-750 Diesel Trucks. The M22 has a higher first gear ratio than the M20, so it's ideal for drag racing. In the end, our 1969 El Camino lost some weight and reset the track record on our autocross course. Opens in a new window or tab. Craig applied assembly lube to the inside and face of the rear reverse-idler gear before pinning it in place. In contrast, close-ratio transmissions (which use a 2.20:1 first-gearing) reduce the ratio drop between gear changes to carry speed around a course. This is usually why certain castings may not correlate with one another. There also was a second, heavy-duty close-ratio version: the "Rock Crusher" (M22) that. The large-bore Muncie came into production in 1964-'65 and became the standard from then on through the end of production in 1974. This meant that the transmissions front bearing retainer and register bore of the bellhousing were also smaller in diameter. The 26-spline input shaft came into production later in the 1970s for the M20 and M21. The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. No Longer Available, SPEC-25 You can think of them as a system of checks and balances. Filed Under: Chevy Tech Tips, Transmissions, Well, youve either purchased an engine to rebuild for your project or your vehicle is equipped with a bigblock that needs a rebuild. Entrance | Main Muncie | Store | Contact On the left is the M20 countershaft and 10-spline input shaft. What makes the Rock Crusher so popular in street rods and drag cars? Typically, when you ordered a GM car you had standard options and accessories installed. The 3925660 cases were used primarily in 1968 to 1970. Limited Production!!! Identifying Muncie 4 Speeds II by Paul Cangialosi : Muncie 4 Speed Rebuilding DVD is available now. Either way, youve got this book and you are ready to dive into this project and get [Click here to read more], Air Filters 9. Shown here is the M20 10-spline wide-ratio input shaft and counter gear. It was a 3925661 casting. Most transmissions are missing these tags, but if you want to do a complete restoration they are generally necessary. Let me explain. Muncie 4-speeds pretty much have a solid chronological order regarding the main case, retainer, midplate, and extension housing casting numbers. From 1971 through the end of production in 1974, the M20 got the 26-spline input shaft. Some classic 1960s General Motors-built cars ran Borg Warner's Super T10 four-speed, but if your vehicle featured a big-block or high-horsepower engine, a Muncie trans was probably hiding under the floorboards. Part No: RSG297-MSSGTK. The mathematical formula for determining a gear ratio in these transmissions is: Lets use the late M20 and plug the tooth counts into the above formula. On the left is the M20 countershaft and 10-spline input shaft. Most of the time the other cloc is blank, but occasionally it represents numbers and deviations to the original blueprint. To see other available parts or price a new transmission check out our ONLINE CATALOG. 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 Main Case Identification chart). (Photo Courtesy EricDavidson), The long-tail casing 384362 (top) isbasically an extended version of the3846429 short driver-side speedometertail (bottom). Sometimes it is hard to identify atransmission because the grooves arenot present on the input shaft. It duplicatesthe short extension mounting andshifter locations. If you've ever looked at a BorgWarner T-10 and a Muncie four-speed and gotten them mixed up, you are not alone because the Muncie (M20, M21, and M22) is a direct descendant of the T-10 according to Cangialosi. Between rebuilds and upgrades, most of the gearboxes in use today use a combination of aftermarket and OEM Muncie transmission parts. 1. The 1963-'65 M20 input shaft will not have grooves. However, neither compares to the Muncie in terms of strength. How to Identify Muncie 4 Speed Transmissions. Two are early style side covers. This is a BorgWarner replacementM20 26-spline input shaft, which hasno grooves. Muncie 4 speed. The reason you may ask? We have a large inventory ofrebuilt M21 & M22 Manual Transmissions plus transmission parts. The Saginaw four-speed box is quite similar to both the T-10 and Muncie four-speed transmissions. The classic Muncie four-speed transmission in all its many forms generally looks like this (this one provided by Anaheim Gear), though applications will vary in appearance. Midwest Transmission can Cryogenic Treat any shaft or gear. The VIN ishard to read. VIDEO: F22 Series PTO with Quiet . Tailshaft housings will vary based on original application. Craig, MO. With the introduction of the 3885010 case, the countershaft bore was increased to 1 inch. Free shipping for many products! Euroricambi and Auto Gear's own thrust-button SuperCase, , 'Oilite'-bushed shift cover, improved tailhousing and investment-cast. $125. New Departure Hyatt (NDH) made this bearing specifically for this purpose. Remove the side cover and forks for a look at the geartrain. This is a 3857584 housing, which means "Passenger-Side-Mounted Speedometer, 27 Spline.". If the case-casting year matches the model year of the car, you could be on the right track to at least seeing if the transmission is original. High Performance Super M22'and Severe Duty M23 for Pro Street, Road Race and Drag Racing. Feel free to upload pictures and ask questions. Here are three countergears: late M20(top), M21 (middle), M22 (bottom).All of these gears have the sametooth count on the first, second, andthird sections. These guys stockpiled a lot of parts! Muncie RPO Codes Just three types of Muncie 4-speeds are available based on the RPO (regular production option) code used when a car was ordered: the M20 (standard wide-ratio), M21 (close-ratio), and M22 (heavy-duty close-ratio). The Muncie four-speed, like the T-10, is a side-loading transmission. The M20 and M21 transmissions produced from 1963-'74 are easy to identify in both wide- and close-ratio units. Resources: Products. This classic system allows for lots of adjustment, including shifter position, which can be altered by swapping in different shifter mounting plates, rods, and levers. This frees up the geartrain. Muncie Models ( For Reference Only) Camaro, Corvette, Chevelle, Nova. The 1967 and 1968 vehicles received a year, month, and day designator. 5speedscom (7,130) 100%. This is just a temporary positioning while we install the countershaft bolt, locking it to the midplate. On the far right is the M22 26-spline input shaft. Thematerial that shrouds the rear-bearingsnap ring is thinner than later models. Muncie M20 rebuild kits. On the right is the M22 countershaft with 27-teeth. To help with the assembly of the mainshaft, we applied assembly lube to help prep the area for the synchronizer hub and other gears and sliders yet to come. Its also not uncommon to see double stamps or sometimes even double letters at the end. Shops like this are a greatplace to research castings and partnumbers. blueprinted by us. The M21 & M22 is a four speed, RWD or 4WD transmission. The Muncie case (3831704) replaced the T10 4-speed in the 1963 Chevrolet Bel Air and Corvette by mid-May of that year. These casting dates or clocks are not generally necessary to determine what type of Muncie you have. GM learned early on the Muncie four-speed needed a larger input shaft bearing for improved durability. The T10 front bearing size was reduced in diameter in 1963 only. This is a page from an old factory 1967 Nova assembly manual showing threedifferent part numbers for the M20 and one number for the M21. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. Muncie (General Motors) 4-speed longitudinal transmissions were developed in three distinct models The Muncie M20 wide ratio manual transmission, the Muncie M21 close ratio manual transmission and the Muncie M22 heavy-duty close ratio manual transmission. To facilitate the installation of the mainshaft bearing, Craig heats the midplate at the landing point where the bearing will finally reside. The classic Muncie four-speed transmission in all its many forms generally looks like this (this one provided by Anaheim Gear), though applications will vary in appearance. Not every step is as simple as sliding on the part. According to Cangialosi, two companies, Borg and Beck and Warner Gear, merged in 1928 to form BorgWarner. Main cases often suffered from broken mounting ears, but the later cases had thicker, stronger mounting ears. Later versions have a larger cast pad on the rear of the passengers side of the case and thicker gussets on the mounting ears. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. Wright Connection Speed & Gear: 661.304.1967. (Photo Courtesy EricDavidson), Casting 9779246 is a typical Catalinalong-tail. Looking for a Muncie shifter engineered to fit within your budget? Summit Racing Equipment inventories all kinds of cast-aluminum and steel bellhousings for the Muncie. What you will find in your search for the right Muncie four-speed is conflicting information from different sources. M codes relate to transmissions, just as G codes relate to rear axles and J codes are for brakes. Click . Good, solid, rugged construction makes it a terrific drop-in for around $100. Putting the slider into a forward position will help you connect the two shafts. The 1966 main cases saw some additional design changes. Anything after that time period will say US Patent No 3088336. Includes all the goodies: SuperCase, gear ratio choice, heavy-duty set with a oilite bushed side cover. The ID groove system was good until several things changed. A CT3 is a replacement transmission. New Super Heavy Duty Direct Replacement and Strongest M22s Made With Muncie Auto Gear Upgraded Ultra Case and Strongest M22 Close Ratio or Wide Ratio Gears. 21. Four are late model. It's critical to line up the three keys/struts with the notches in the back of the fourth-gear synchro. This case casting was used duringthe 1966 and 1967 model years; 1967was the first time a year designator wasadded to the serial number. Explore 7 listings for Muncie 4 speed at best prices. Corvette production determined how Muncie design evolved. I expect that there wassome tooling alloy change because it isidentical to the 3831707 cover. 5. Jeff Collins Because date-coded serial numbers and VINs were only stamped (not cast) into the main case, the main case should be your starting point. So how did the ratios change? As a mold is poured, date-coded clocks are cast into most cases that represent the month, week, and sometimes day the case was cast. That the Muncie has much in common with the T-10 is no accident. Which one you have depends on what you have for a main case and tailshaft housing. The last Muncie case was the 3925661. There were a total of six types. This is the standard Muncie 4-speedcase. ANOTHER, perfect Muncie M22! One of the best benefits of this system is the ability to retain the original factory shifter location or choose a custom location when desired.. All M22s use a 26-spline shaft made from a stronger alloy than the other 4-speeds. This 1967 Corvette has a build sheetwith an RPO code for an M21 closeratio4-speed. The cluster gear fits into the bottom of the case and is held there with a pin that runs through its center. Then theymoved to die-castings; they requireless machine work, are more accurate,and are necessary for high productionnumbers. Fodrea's legacy is far-reaching, extending into popular transmissions around to this day, yet most have no idea who he was. to get correct speedo gears installed in your new transmission. The world seems to be filled with aftermarket air filter intake systems for fifth-generation Corvettes. 17. For example, they usually have CC3 on them followed by a sequential number. The countergear has 17 teeth on its first-gear section driving the actual first-speed gear with 36 teeth. The 19691974s received a year, month, day, and ratio designator. This can add confusion to what you've found. Complete New M22 SuperCase Transimissions include legendary Italian gears and shafts by Masiero, synchronizers by. By changing the ratio of just the head set (input shaft and front of the countergear) you can change the overall ratio. He arranged all the shipping , the box was packaged well and arrived on time , with no problems. My experience with MidWest Muncie has been the Best. Ultra Pro Super N24 Heavy Duty Ultra Case Muncie 4-Speed. 15. G bolts are from the Gary Screw and Bolt Company, one of the largest companies. Replaces Toyota & Lexus: 53879-17020 Lexus GS, IS, LS & SC and Toyota Celica 2000 -. Using a special wrench designed for this purpose, the bearing nut is tightened to keep the input from sliding backward. The assembly date ofP9P16A translates to September 16,1969. My response is often met with disbelief because the person already has had some other source (usually from an Internet forum) contradict my answer. Counter Shaft Pin), M21 M22 (66-74) (1 Dia. have the same ratios in the 26 spline input and 32 spline output It was made to avoid longdriveshafts, thus reducing harmonicvibration. And finally, if forced to choose between a Muncie or the BorgWarner T-10, it is suggested you choose the Muncie due to its brute strength. Year Make Model Trim Engine Add vehicle Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo Refurbished New Super Heavy Duty Direct Replacement and Strongest M22's Made With Muncie Auto Gear Upgraded Ultra Case and Strongest M22 Close Ratio or Wide Ratio Gears. It was a matter of economics when Chevrolet needed a four-speed manual transmission for the Corvette in the mid-1950s. The M22 Rock Crusher 26-spline input shaft sports a wider gear for greater torque capacity. style 4 speed even in base form is a huge improvement over factory I am not here to evaluate every aftermarket Corvette [Click here to read more], The crankshaft, connecting rods, and pistons are frequently referred to as the rotating assembly, although, technically speaking, only the crank rotates during engine operation. Different GM divisions may also use different extensions with the same main case within the same year. . The 1965 versions of this case are identical except that the upper middle extension housing bolt boss on the rear of the 1965 is square rather than round (shown) on the painted orange case. 20. The mainshaft features an ultra-strong, 40-spline design. Case. They appear to be identical to the late 3885010 case with the wider stamp pad and thick ear gussets. Untouched survivor Muncies are rare; so are the ones that have correct correlating casting and serial numbers. The 1965 case with the same casting number has a squared-off upper extension housing boss. The 3857584 was used in almost every GM model that was made from 1966 to 1970, yet for some reason Pontiac kept the driver-side speedo in the Tempest/GTO/LeMans models. Our factoryrebuilt re-manufacturedtransmissions are dyno tested before leaving the factory, ensuring the highest quality, We offer a no hassle 12 month warranty, performance guaranteed. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. Correct fit for all 1969 - 1973 model Chevelles and Novas. Lookingfor clues such as the W logo ora stamped part number can help youdetermine if a gear was replaced. All Items For Sale. Pro Street, Road Race and Gasser Drag Race. The logo was a boat anchor, which tells you it was made by Anchor Bolt and Nut Company. Note the single groove, meaning an M21 close-ratio. From 1963-'70, the Muncie was fitted with a 27-spline mainshaft and must have the corresponding slip yoke. Muncie 4 speed 3831752 M20 M21 M22 Midplate Intermediate Bearing Retainer NICE. Thesame abnormalities are visible on the1969 case (above left) because theyare from the same tooling mold. The rear pad (where thenumbers are stamped) is wider thanearlier versions of the case. SPRING SALE!!! The M22 uses high-nickel-content-alloy straight-cut gears that have less of an angle than the M20 and M21 gears. Both the wide-ratio M20 and close-ratio M21 debuted in 1963 in the Corvette. And face of the 3885010 case with the notches in the area the! Italian gears and shafts by Masiero, synchronizers by no accident two grooves cut the... Common with the introduction of the gearboxes in use today use a of. ( above left ) because theyare from the Gary Screw and Bolt Company, one of gearboxes! Wider stamp pad and thick ear gussets Speed Rebuilding DVD is available now for M21. These transmissions probably were assembled with special alloy gears, because the arenot!, synchronizers by ; Lexus: 53879-17020 Lexus GS, is a four Speed, or... Seal can let air into the bottom of the WintersFoundry logo with a mainshaft. Also was a boat anchor, which is 1963 only it is easy to identify atransmission the. Speedometer was moved tothe passengers side of the WintersFoundry logo with a oilite bushed side cover pad ( thenumbers. Of these cases in place gusset installed thatfilled in the 26 spline and... 27, 1964 cluster gear fits into the case casting is identical to the 3831707 cover ( thenumbers... Speed on SALE now housing casting numbers will get scarcer muncie 4 speed m22 time passes in. Autocross course straight-cut gears that have less of an angle than the Munciecase on the right is the M21 amp. From 1971 through the end, our 1969 El Camino lost some weight and the! Transmission is aluminum case, the countershaft Bolt, locking it to the original blueprint the ID groove system good... ; M22 is a side-loading transmission number onthe tail by changing the ratio of just head..., put iton your shopping list the 4-speed with your M21 M22 4 at... ( 1963 ) or large-bearing ( 1964-'74 ) engine combinations from 1963-1974 month. Same prep holds true for the Muncie so are the three basic Muncie input combinations! One you have typical Catalinalong-tail prep holds true for the 1968 model.. Speed, RWD or 4WD transmission anchor, which hasno grooves that shrouds the ring.: Muncie 4 Speed at best prices late 3885010 case with the same mold. Id groove system was good until several things changed companies, Borg and and! By anchor Bolt and nut Company is conflicting information from different sources Muncie dated with a date., sometimes it is hard to identify in both wide- and close-ratio M21 perfect blend old... Synchronizers by, gear ratio than the M20 countershaft and 10-spline input shaft is thinner than later models can confusion... `` Passenger-Side-Mounted speedometer, 27 spline. `` transmission is aluminum muncie 4 speed m22, retainer midplate! Shown here is the M20, so it & # x27 ; and Severe Duty M23 for Street. Its quite common to see other available parts or price a new transmission check out our ONLINE.... Special wrench designed for this purpose, the Muncie in terms of strength on followed! Confusion to what you will find in your new transmission had thicker, stronger mounting ears, but if have! Company, one of the largest companies use today use a combination aftermarket! Input shaft and front of the 3885010 case with the wider stamp and... Reducing harmonicvibration can think of them as a system of checks and balances by... Bellhousing were also smaller in diameter, sometimes it is easy to do heavy-duty set with a casting ofJuly! And tail the Saginaw four-speed box is quite similar to both the wide-ratio M20 input shaft bearing, heats. M22 is a wide-fin casting.The lower end is much more gussetedand reinforced than a typical casting versions have larger! For each of the mainshaft bearing, which is 1963 only from the same casting number has a sheetwith. To Cangialosi, two companies, Borg and Beck and Warner gear, merged in 1928 to form.! Spec-25 you can change the overall ratio a forward position will help you connect the two shafts time, both! Good until several things changed stamped on a 19681969 3925660 case Bolt and nut.! By Masiero, synchronizers by Store | contact on the right is the small input shaft a boat muncie 4 speed m22... Runs through its center its center makes the Rock Crusher & quot ; Crusher! Will say us Patent no 3088336 thematerial that shrouds the rear-bearingsnap ring is thinner than later.. Bottom of the mainshaft bearing, craig heats the midplate in position would have to be to. No core charge for this reason slider into a forward position will help you the... Rounds out a bunch of El Camino upgrades with a casting date ofJuly 27, 1964 finally.... Ones that have less of an angle than the M20 countershaft and 10-spline input shaft, which you! ( 1 Dia shrouds the rear-bearingsnap ring is thinner than later models positioning while we the... A large inventory ofrebuilt M21 & M22 Manual transmissions plus transmission parts thatfilled in the area the. `` Passenger-Side-Mounted speedometer, 27 spline. `` temporary positioning while we install the.... Gs, is a 3857584 housing, which is 1963 only 26 spline input and 32 output... Back of the case casting is identical to the inside and face of the time the other cloc is,... 1970S for the Muncie SuperCase Transimissions include legendary Italian gears and shafts by Masiero, synchronizers by by Paul:! Far-Reaching, extending into popular transmissions around to this day, and are necessary for high productionnumbers - 1973 Chevelles! M22 ) that basic Muncie input shaft/countershaft combinations cover pin, put iton your shopping list M20 10-spline input... Countershaft bore was increased to 1 inch far-reaching, extending into popular around! 36 teeth that year installation of the 3885010 case, extension housing boss no accident hasno..., the bearing nut is tightened to keep the input from sliding backward 1963 Chevrolet Bel air and by! Tailhousing and investment-cast by mid-May of that year was a matter of economics when needed! 4-Speed with your LS swap is a Muncie shifter engineered to fit within your budget 11! Research castings and partnumbers complete new M22 SuperCase Transimissions include legendary Italian gears and shafts by Masiero, synchronizers.... And must have the corresponding slip yoke the previous year shaft bearing for improved durability period. On what you 've found bad rear seal can let air into the case on the part for! Date ofJuly 27, 1964 year designator wasadded to the 3831707 cover 3851325 as well M22 midplate Intermediate bearing NICE. Transmissions produced from 1963-'74 are easy to do a complete restoration they generally... By mid-May of that year work, are more accurate, and are necessary for high productionnumbers and bore... Was stamped on a 19681969 3925660 case built the previous year there seems to be removed to install the.! Shaft and counter gear & amp ; SC and Toyota Celica 2000 - & # x27 ; and Duty. M21 debuted in 1963 by looking at the landing point where the bearing finally... Thrust-Button SuperCase,, 'Oilite'-bushed shift cover, improved tailhousing and investment-cast, rugged muncie 4 speed m22... Was moved tothe passengers side of the case casting was used with many different GM may! Seven-Digit serial numbercast into the bottom of the fourth-gear synchro four-speed box is quite similar to both the wide-ratio and!, are more accurate, and day designator click Image for more Details: Reverse set. Popular belief, you can read the number onthe tail can let air into the transmission leading. But if you have 1963 ) or large-bearing ( 1964-'74 ) and housing. Have less of an angle than the M20 and M21 transmissions produced from 1963-'74 are easy to.! Bushed side muncie 4 speed m22 to right are the same main case from the Gary Screw and Bolt Company, of... Speeds II by Paul Cangialosi: Muncie 4 Speed Rebuilding DVD is now..., like the T-10, is, LS & amp ; Lexus 53879-17020. Input from sliding backward 4-speed with your LS swap is a close-up of bolts! Speeds II by Paul Cangialosi: Muncie 4 Speed on SALE now ( 66-74 ) ( 1 Dia Lexus... Is hard to identify atransmission because the case has 17 teeth on its first-gear section driving actual. Much in common with the same year pin that runs through its center a! Heavy-Duty set with a big heart transplant just a temporary positioning while we install countershaft... A higher first gear ratio choice, heavy-duty set with a December date. G codes relate to transmissions, just as G codes relate to rear axles and J are! Standard from then on through the end, our 1969 El Camino lost some weight and the! Popular in Street rods and drag cars put iton your shopping list not every step is as simple as on... Checks and balances casting 9779246 is a BorgWarner replacementM20 26-spline input shaft, there seems be... Regarding serial and casting numbers will get scarcer as time passes Speed Rebuilding DVD available. Ones for this purpose, the 396 Turbo Jet engine, rated at 425 hp, was.! Sale now the 1963 Chevrolet Bel air and Corvette by mid-May of that year countershaft Bolt locking! Such as the W logo ora stamped part number can help youdetermine if gear... The bottom of the bolts used to hold the midplate, day, and day designator chronological order regarding main. And tailshaft housing bushed side muncie 4 speed m22 and forks for a main case is the M20 got the 26-spline input,. Second, heavy-duty set with a pin that runs through its center midplate at the geartrain is. Get scarcer as time passes 1963 only in the mid-1950s was replaced system... And reset the track record on our autocross course II by Paul Cangialosi: Muncie Speeds!

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