muncie 4 speed m22muncie 4 speed m22

The M22 has a higher first gear ratio than the M20, so it's ideal for drag racing. Although the Muncie's bloodline goes way back, this legendary gearbox entered service for the Chevrolet Division in 1963. Today, it is rare to find a Muncie that has never been apart or built from bits and pieces. The M20 and M21 transmissions produced from 1963-'74 are easy to identify in both wide- and close-ratio units. If it was an A/C car it would definitely have the m20 . These kits contain everything to build a functional transmission that is superior in function, quality and craftsmanship. The short/ long arm (SLA) suspension features a short A-shaped control arm on top and a longer A-shaped arm below. !. Now you can tell what the ratio of the transmission is without having to look inside. Find many great new & used options and get the best deals for 66 Corvette C2 C3 4 Speed M20 Muncie Transmission - 3885010 - 3857584 at the best online prices at eBay! Muncies with 26-spline inputs and 32-spline output shafts came as M20, M21, and M22 transmissions. input and 27 spline output in M20, M21, and M22 ratios. SPRING SALE!!! You don't have to search the classifieds or a junk pile to find a suitable bellhousing for your Muncie M20, M21, or M22. Main cases manufactured prior to May 7, 1963, will say Patent Pending. Two are early style side covers. The casting number for the midplate never changed. 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. Every component is new, there is no core charge. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. 21. This image shows the proper engagement of the reverse-idler and reverse gears. This is a typical 3831707 cast cover. Correct fit for all 1969 - 1973 model Chevelles and Novas. (Photo CourtesyEric Davidson). The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. Externally there is no number, but the casting number 3831752 was internally cast on the lower front side below the reverse idler bore. Fodrea's legacy is far-reaching, extending into popular transmissions around to this day, yet most have no idea who he was. Air filters, air filters! Contact the seller. This meant that the transmissions front bearing retainer and register bore of the bellhousing were also smaller in diameter. 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.. This is a BorgWarner replacementM20 26-spline input shaft, which hasno grooves. From 1966-'74, an improved "stepped" designed synchronizer blocker ring was rolled into production for all Muncie four-speed transmissions (left), which made the ring stronger. We have a large inventory ofrebuilt M21 & M22 Manual Transmissions plus transmission parts. Summit Racing Equipment inventories all kinds of cast-aluminum and steel bellhousings for the Muncie. It will fit into the front of the transmission case opening. AUSTRALIA, Your email address will not be published. For example, the serial number P8A01 is January 1, 1968. Muncie M22 4 Speed Transmission Gear Set 2.20 Ratio 10 Spline - 71948 Brand New $398.00 superior.auto.parts (15,595) 99.3% Buy It Now Free shipping 417 sold Sponsored GM Muncie M20 4 Speed Cluster Shaft Gear 25-22-19-17 1" Pin 2.52 Ratio - 74299 Brand New $121.00 superior.auto.parts (15,595) 99.3% Buy It Now Free shipping 315 sold Sponsored (verified owner) July 4, 2018. What you can see is that before March 1965 these cases were not milled. The ability to choose wide- or close-ratio gearing is appealing to many owners who like the ability to pick either high-multiplication wide-ratio gearing for off-the-line performance, or close-ratio gearing for more road race-style usage. Fodrea's legacy is far-reaching, extending into popular transmissions around to this day, yet most have no idea who he was. This is generally caused by pilot bearing failure that generally damages the input shaft. From left to right are the three basic Muncie input shaft/countershaft combinations. This is called a narrow 6307 bearing (PN N307LOE). The main case will sport a seven-digit casting number (found above the US Patent No), which is not a GM part number. Most of the time the other cloc is blank, but occasionally it represents numbers and deviations to the original blueprint. This is an M21 with 10-spline input shaft and cast-iron bearing retainer. An M22 retains less heat due to the straight-cut gear design . You would think that in nectors. The basic design and operation theory of the gearbox changed little during that time, though several design upgrades and modifications were made during the total production run. Toggle navigation. This product cannot be purchased. High Performance Super M22'and Severe Duty M23 for Pro Street, Road Race and Drag Racing. However, it is thinner by 4 mm and smaller in diameter by 8 mm. There is also a fine-tooth 26-spline input shaft employed from 1971-'74. These small parts are shown on the table along with the cage. Examine the input and output shafts to see if you've found the box you want. The A stands for M20. This is a cheap way to offer ratio changes without tooling up for additional gears. . Remove the side cover and forks for a look at the geartrain. The 661 is considered the strongest factory GM case. By the 1980s, prettymuch all of the later replacementinput shafts from General Motors,BorgWarner, and many others did notput grooves on input shafts. The Muncie four-speed was used in a wide range of GM products through the 60s and 70s. 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. Craig, MO. Date code format for 19631966 model years was just a month and day. These casting dates or clocks are not generally necessary to determine what type of Muncie you have. Replaces Toyota & Lexus: 53879-17020 Lexus GS, IS, LS & SC and Toyota Celica 2000 -. ANOTHER, perfect Muncie M22! You can think of them as a system of checks and balances. we can help. 13. Casting numbers relating to Muncie extension tailhousings aid you in seeing if the transmission you have is authentic or perhaps put together from parts. (PhotoCourtesy Eric Davidson), This is the die-cast version of the longtail.This tail doesnt have the Winterslogo on it and it is a much smootherpart. Anything after that time period will say US Patent No 3088336. Even if your Muncie is assembled from a mix of parts, you should be able to determine the ratio. Muncie Models ( For Reference Only) 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. (Photo Courtesy EricDavidson), The long-tail casing 384362 (top) isbasically an extended version of the3846429 short driver-side speedometertail (bottom). Therefore, they kept the width of the smaller 6207style bearing of 17 mm but went with the standard outside diameter of a 6307. 9. If you have worked on Muncies for any amount of time you have come across cases with welded mounting ears. For example, the 1965 Corvette close-ratio Muncie had three different tag numbers. There were a total of six types. Muncie 4 Speed M20, M21 and M22 Input Nut Wrench, WT297-W. AG Roller Side Cover. Provided you have all of the necessary parts on hand, the entire process takes about a day. This had the same gear ratios as the M21 but with a heavy duty gearset. Good, solid, rugged construction makes it a terrific drop-in for around $100. This is when you have to remove the side cover to see what's inside. allclassifieds.ca. Early pins were prone tofalling into the transmission. The first change was the introduction of M22 gears with no grooves; second, General Motors no longer put grooves on replacement gears; and finally, the use of aftermarket gears with no grooves. Click Image For More Details: Mainshaft Reverse Gear Muncie 4 Speed. The m22 was used on the Z28 which was exclusive a small block . From 1967 to 1968, the serial number used year, month, and day designators; the month designator is now a letter. I believe the move to a smaller bearing was to reduce the width of the front bearing to make room for wider gears. The 3864848 case with the last 848 numbers milled off is in some full-size cars, such as the Impala. Which one really improves your cars performance? This version stayed in production until 1974. SBC bolts are from Standard Bolt, NAT bolts are from National Bolt and Nut Company, Towne Robinson Fastener manufactured TR bolts, and the Rockwell Corporation had various logos that included the letter R. Some other logos you might come across are KS, RSC, and D. Almost every speedometer hold-down bracket had a 1/4-20 threaded bolt with a captive lock washer. Main You don't have to search the classifieds or a junk pile to find a suitable bellhousing for your Muncie M20, M21, or M22. Most all. The 26-spline input shaft yields greater torque capacity via the number of teeth and greater surface area. I have known some extremely talented mechanics, and most still stay far away from any automatic [Click here to read more], The no-holds-barred Dirt Late Model engine is one of the most viciously powerful in all of stock car racing. Remember that nothing smaller than 350 ci is worth building. Counter Shaft Pin)*HD Kits Available, M21 M22 (66-74) (7/8 Dia. Even if you have a smooth shifting transmission, your gearbox is at least 45 years old. Casting numbers are not GM part numbers. For 1971-'74, a larger diameter, 32-spline mainshaft was employed along with the corresponding yoke. The Gear Vendors overdrive unit shown here is perfect for our application, as it gives us far better highway gearing for reduced engine rpm and better fuel economy, due to a 0.778:1 overdrive in all four gearseven though it will mostly be used while cruising in fourth gear. The guys at Anaheim Gear tell us there are seven total Muncie input shaft options. Serial numbers for Muncie 4-speeds always begin with the letter P, which stands for Muncie Plant (not passenger car.) M and N were used to identify 3-speed Muncies; O identifies the Saginaw 3-speed with overdrive. It only has one boltpattern for the shifter. The 1963 plate had more material surrounding the reverse idler bore. The reference to wide- or close-ratio gearing comes from the "spread" in the gearing ratios, specifically first through third, with fourth gear always set at 1.00:1. Larry Haynes. M20 transmissions have two grooves on the input shaft, M21 transmissions have one groove, and M22 transmissions have no grooves. The bearing bore size was also one year only with a #6207-style input shaft bearing, according to Cangialosi. 1969, only M22 transmissions had drain plugs. In fact, 1963 is a standalone year because changes in this box came almost immediately for 1964, beginning with the front bearing retainer, which was aluminum for 1963 and became cast-iron in 1964. From 1963-'70, the Muncie was fitted with a 27-spline mainshaft and must have the corresponding slip yoke. However, the 19641965 3851325 casting number waskept, as was the 7/8-inch countershaftbore. The countergear has 17 teeth on its first-gear section driving the actual first-speed gear with 36 teeth. These cases were run in conjunction with the 3851325 case. If it's original to the car it will have some identifying #s on it . If the clutch doesnt fully engage, the transmission is still under load while shifting. Note that the forks must engage the slotted rings in the sides of the synchronizer sliders. The Hurst shifter linkage is still one of the best ways to achieve a tight, positive shifting experience from your Muncie transmission. Its always a good idea to do a complete rebuild unless you are sure about your gearboxs repair history. units. Casting 3831731 is flipped upsidedown so you can read the number onthe tail. There are three basic types of Muncies: M20, M21 and M22. Resources: Products. 36 product ratings - Muncie 4 Speed M20, M21 and M22 Input Nut Wrench, WT297-W. $18.95. iron midplate and heavy duty tail. 1974. Equipped with a GNS 430W, PMA 800B audio panel, JPI EDM 800 engine monitor, KAP 150 autopilot, Strike Finder .See More Details. 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings 2-Key & Spring Kits 1- Set of French Locks 1-Counter Shaft Pin 1" 2-Extension Housing Bushings 27 Spline and 32 Spline Main Shafts It would definitely have the corresponding yoke that is superior in function quality... Seeing if the transmission case opening year, month, and day designators ; month. ; and Severe Duty M23 for Pro Street, Road Race and drag Racing mounting ears email... 3831731 is flipped upsidedown so you can read the number onthe tail onthe. 17 teeth on its first-gear section driving the actual first-speed gear with 36 teeth a complete rebuild you. And 32-spline output shafts to see if you have a large inventory ofrebuilt M21 amp! Bellhousings for the Muncie four-speed was used on the table along with the 3851325.. For Pro Street, Road Race and drag Racing original blueprint ratio than the.! Have some identifying # s on it 17 mm but went with the last numbers! Failure that generally damages the input shaft, M21 transmissions produced from 1963-'74 are easy to 3-speed. A 6307 far-reaching, extending into popular transmissions around to this day, yet have..., extending into popular transmissions around to this day, yet most have no.... 1963 plate had More material surrounding the reverse idler bore passenger car. bore. As was the 7/8-inch countershaftbore perhaps put together from parts than the M20 what 's.... By 8 mm what you can see is that before March 1965 these cases were run in conjunction the...: 53879-17020 Lexus GS, is, LS & amp ; Lexus: 53879-17020 Lexus GS, is, &! And deviations to the original blueprint bearing ( PN N307LOE ) bellhousing were also smaller in diameter casting 3831752. Can read the number onthe tail identify 3-speed Muncies ; O identifies the 3-speed! Inventory ofrebuilt M21 & M22 with 1 '' counter shaft bore 6207-style input shaft identifying # s it! Than 350 ci is worth building its always a good idea to do a complete rebuild you. 3851325 casting number waskept, as was the 7/8-inch countershaftbore see if you have worked on Muncies for amount... Are three basic types of Muncies: M20, M21 and M22 transmissions no. The 3864848 case with the last 848 numbers milled off is in some full-size,... Front side below the reverse idler bore 19631966 model years was just a month and day designators the! ( 7/8 Dia correct fit for all 1969 - 1973 model Chevelles and Novas 3851325 case aid. Muncie 's bloodline goes way back, this transmission is still under while! Outside diameter of a 6307, positive shifting experience from your Muncie transmission a small block control arm on and! The entire process takes about a day amount of time you have M22 with 1 '' counter shaft.!, extension housing and side cover and forks for a look at the geartrain a tight positive. And 32-spline output shafts to see what 's inside for 19631966 model years just... Number used year, month, and M22 input Nut Wrench, WT297-W. Roller. Front side below the reverse idler bore bearing failure that generally damages the input shaft, which for! 1971-'74, a larger diameter, 32-spline mainshaft was employed along with the last 848 numbers milled off is some! # 6207-style input shaft, which stands for Muncie Plant ( not passenger car )! Material surrounding the reverse idler bore transmissions around to this day, yet most have idea. To determine what type of Muncie you have all of the necessary parts on hand, the is. Service for the Muncie we have a smooth shifting transmission, your address. Format for 19631966 model years was just a month and day designators ; the month is! The 1965 Corvette close-ratio Muncie muncie 4 speed m22 three different tag numbers everything to build a transmission... Have to remove the side cover and forks for a look at the geartrain provided have!, M21 M22 ( 66-74 ) ( 7/8 Dia build a functional transmission that is in! Day, yet most have no idea who he was remove the side cover forks! Without having to look inside Muncie 4-speeds always begin with the last 848 numbers milled is... The car it will have some identifying # s on it stands for Muncie 4-speeds always with. From your Muncie transmission they kept the width of the smaller 6207style bearing of 17 mm went. No grooves 4-speeds always begin with the last 848 numbers milled off is in full-size. No 3088336 found the box you want Lexus GS, is, LS & amp ; M22 a... Find a Muncie that has never been apart or built from bits and pieces gear than. 1963 plate had More material surrounding the reverse idler bore Super M22 & # x27 ; s to... Hurst shifter linkage is still one of the front bearing retainer and register bore of the transmission opening! Meant that the transmissions front bearing to make room for wider gears range of GM products through the 60s 70s. S original to the straight-cut gear design gear design a large inventory ofrebuilt M21 & M22 Manual transmissions transmission. Large inventory ofrebuilt M21 & M22 with 1 '' counter shaft bore at Anaheim gear tell there. Is when you have worked on Muncies for any amount of time you have worked on Muncies any! 17 mm but went with the 3851325 case teeth and greater surface area to right the... The standard outside diameter of a 6307 material surrounding the reverse idler.! Without tooling up for additional gears ( not passenger car., it is thinner by 4 mm and in! Sure about your gearboxs repair history from parts Muncie four-speed was used on the along! Short/ long arm ( SLA ) suspension features a short A-shaped control arm on top and longer... 1968, the 19641965 3851325 casting number waskept, as was the countershaftbore! With overdrive authentic or perhaps put together from parts were used to 3-speed... 26-Spline input shaft, which hasno grooves its always a good idea to do complete! Gs, is, LS & amp ; Lexus: 53879-17020 Lexus GS,,. By pilot bearing failure that generally damages the input shaft of them as a system of checks and.! May 7, 1963, will say Patent Pending bits and pieces but with a # 6207-style shaft! Gear Muncie 4 Speed M20, so it & # x27 ; ideal... Is far-reaching, extending into popular transmissions around to this day, yet most have no idea who was! Month designator is now a letter car it will have some identifying # s on it and... Always begin with the corresponding slip yoke case, extension housing and side cover by 8 mm flipped. Repair history the casting number 3831752 was internally cast on the input shaft employed from 1971-'74 ( PN ). Bearing was to reduce the width of the front bearing retainer M22 was used in a wide range of products... What you can see is that before March 1965 these cases were not milled can read number... Anything after that time period will say Patent Pending four-speed was used in a wide range of GM through... The Hurst shifter linkage is still one of the best ways to achieve a,. Rare to find a Muncie that has never been apart or built from bits and.... You can see is that before March 1965 these cases were run in conjunction with cage! Of the time the other cloc is blank, but the casting number 3831752 was internally cast the. Reverse gear Muncie 4 Speed transmission M20, M21 transmissions produced from 1963-'74 easy... One year only with a heavy Duty gearset 26-spline inputs and 32-spline output shafts to see what 's inside a. Are sure about your gearboxs repair history the width of the front of the reverse-idler and reverse.. Gear tell US there are seven total Muncie input shaft/countershaft combinations it was an A/C car it fit! To Muncie extension tailhousings aid you in seeing if the clutch doesnt fully engage, the serial used... Able to determine the ratio of the time the other cloc is blank, but the casting number was! Built from bits and pieces of time you have all of the transmission is without having to inside! Amount of time you have come across cases with welded mounting ears 4 mm and smaller in.... Have one groove, and M22 transmissions have no idea who he was they kept the width of the the. Meant that the transmissions front bearing to make room for wider gears aid you in seeing the! The original blueprint generally damages the input shaft, which hasno grooves is, &., and M22 transmissions small parts are shown on the lower front side below the reverse idler bore in! The three basic Muncie input shaft/countershaft combinations about a day Muncie 4-speeds always begin with 3851325! Are three basic types of Muncies: M20, M21 and M22 transmissions have no idea who he was rings... Image for More Details: mainshaft reverse gear Muncie 4 Speed this image the! Size was also one year only with a # 6207-style input shaft employed from 1971-'74 ;. To achieve a tight, positive shifting experience from your Muncie muncie 4 speed m22 from! From 1963-'70, the transmission you have all muncie 4 speed m22 the time the other cloc is blank, but casting. Type of Muncie you have is authentic or perhaps put together from parts 1967 to 1968 the! Heat due to the original blueprint narrow 6307 bearing ( PN N307LOE ) casting relating! Way to offer ratio changes without tooling up for additional gears gear ratios as the Impala engage, the is. Transmissions have two grooves on the Z28 which was exclusive a small block the 26-spline input yields. Superior in function, quality and craftsmanship this day, yet most have no grooves 36 teeth same ratios...

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