With 800-plus HP, it boasts nearly as much peak power as a NASCAR Nextel Cup powerplant, but the DLM engine works over a much wider RPM range [Click here to read more], Most car enthusiasts are familiar with the GM G-Bodys front suspension because it is similar to every GM vehicle built since 1955. The casting clock codes are at right above the fill plug. 3925660 main case from the Muncie Plant and has a passenger side speedo gear tail shaft housing #3846429. 19. This improves shift feel. bearings and in some models bushings. Us | Rebuild Kits | Muncie Fair Price. This frees up the geartrain. Looking for a Muncie shifter engineered to fit within your budget? Note the unique shape of the tail section of the tailhousing, with its flared design. An M22 retains less heat due to the straight-cut gear design . It had a 7/8-inch countershaft bore and used a 6207-type front bearing. The logos on the sidecover may be different than those used on the extension housing or the front bearing retainer, but they will always be the same grade and have the same logo. Some cases may look identical and have a different casting number but have the same GM part number. Two are early style side covers. To see other available parts or price a new transmission check out our ONLINE CATALOG. In the end, our 1969 El Camino lost some weight and reset the track record on our autocross course. (The M does not stand for Muncie.). Equipped with a GNS 430W, PMA 800B audio panel, JPI EDM 800 engine monitor, KAP 150 autopilot, Strike Finder .See More Details. (Photo Courtesy Ed Hartnett). 11. 4. M22 - M22W M22X To speak to a Drive Train Expert or to place an order call toll free888-824-2012! Ithas the early non-hat-style pivot pin. Here's a typical Muncie gearset consisting of First, Second, and Third gear. His MUNCIE BOOK explores Muncie rebuilding, performance tips, and history. There are two ways you can tell the difference between the M21 and the Rock Crusher. View Photos. 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. If it was an A/C car it would definitely have the m20 . This is Brian Higgins of the SK TrannyShop. Jeff Collins Midwest Transmission can Cryogenic Treat any shaft or gear. Shops like this are a greatplace to research castings and partnumbers. According to Paul Cangialosi, Muncie transmission historian, technician, and author of Muncie 4-Speed Transmissions: How to rebuild and modify, the Muncie four-speed transmission has its roots back to 1935 and the U.S. patent number 3,088,336 along with an engineer named James W. Fodrea. Update on new Muncies transmissions as of January 1st 2022. This is a 3857584 housing, which means "Passenger-Side-Mounted Speedometer, 27 Spline.". The M21 & M22 is a four speed, RWD or 4WD transmission. It will fit into the front of the transmission case opening. Note that the forks must engage the slotted rings in the sides of the synchronizer sliders. units. OD WT297-62, GM Speedo Housing Retaining Bracket and Bolt Kit, T5-TAB, Input Bearing Output Bearing Max load, M6308N, Muncie 4 Speed Transmission Master Rebuild Kit - Max Load, BK116WS-MASTER, Muncie Drive Speedometer Gear 8 Tooth, 3978758, Muncie Extension Housing 27 Spline Main Shaft, 18-410-021, Muncie Front Bearing Upgrade Kit M6307NR, 18-410-025, Muncie Input Shaft 24T 10 Spline Wide Ratio, AWT297-16A, Muncie Input Shaft 26T 10 Spline Close Ratio AWT297-16. Cangialosi explains there were two basic mainshafts produced for the M20, M21, and M22 transmissions (see Input Shaft Identification chart). 7. The numbered metal tag on the sidecover carries the actual part number of the transmission assembly. RTS / SROD 3 Speed Overdrive Transmission Parts, BW4422, BW4424, BW4462 Transfer Case Parts, BW4484, BW4485, BW4493 Transfer Case Parts, Rebuilt Cadillac CTS-V TR6060 Transmission, Extension Housing Bushing 1.630 OD, 35008, Extension Housing Bushing 2.010 Inch. 1963-1965 Model Years The Muncie transmission began replacing the Borg-Warner 4-speed transmission on Wednesday, February 6, 1963, when the first Muncie 4 speed transmissions were shipped to the Baltimore Final Assembly Plant for installation into Chevrolet passenger cars. I created a Facebook page at www.MuncieBook.com. The new Muncie Cangialosi tells us all M20 and M21 transmissions were produced with both 10- and 26-spline input shafts. One more way to identify the Muncie is via stamped codes in the case, which indicate when the transmission was built at Muncie (see How To Read Muncie Build Date Codes chart). Reproductionvehicle assembly manuals are a good source for correct transmission assemblypart numbers. You can think of them as a system of checks and balances. In the 1970s, virtually all Muncie four-speeds had 26-spline input shafts. Resources: Products. The reverse gear goes on the mainshaft in this location.\. Contact the seller. Serial numbers from 1963 to 1966 included only the month and day. 6. Because the Muncie has so much in common with the T-10 and even similar Saginaw boxes, it is easy to get this guy mixed up with non-Muncie units. 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. By the 1980s, prettymuch all of the later replacementinput shafts from General Motors,BorgWarner, and many others did notput grooves on input shafts. The way to differentiate a 1966 3885010 case from a 1967 is by the serial number. This 1967 Corvette has a build sheetwith an RPO code for an M21 closeratio4-speed. AUSTRALIA, Your email address will not be published. Notice that some extension housings overlap model years with other housings. 6. Camaro, Corvette, Chevelle, Nova. If you need more information or cannot find the parts you need give us a call, if you would like to save money, ask about our good take out parts (GTO), they are inspected and guaranteed. There are at least nine different known Muncie main case numbers, not including ones from the aftermarket according to the crew at Anaheim Gear. The 3925660 cases were used primarily in 1968 to 1970. Entrance | Main Muncie | Store | Contact Two are early style side covers. Custom built to protect the trans. 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. MUNCIE 4 SPEED TRANSMISSION TAIL SHAFT HOUSING 3857584 M20 M21 part. SPRING SALE! 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. Muncie 4 Speed; Rebuild Kits; . However, the 19641965 3851325 casting number waskept, as was the 7/8-inch countershaftbore. The VIN ishard to read. The guys at Anaheim Gear tell us there are seven total Muncie input shaft options. The evolution of case design also helps pinpoint the year a case was released. Before you here are the basics of Muncie M20, M21, and M22 four-speed transmissions. Opens in a new window or tab. Its rare to find a TCS cover 1969 they would have just sold you with a switch that actually works or an upgraded 1966-and-up Muncie as hasnt had the connector broken off. As far as your 73 it could have either m20 or m21 . Note the slot in the inner ring of the reverse gearthis is where the reverse fork will locate. C $52.12 + C $78.60 shipping. The mid plate is aircraft grade aluminum. This is what the assembly looks like with the front bearing installed, prior to inserting the input shaft into the front of the case. Gasser Drag Race with Long V-Gate Shifter. The speedometer was moved tothe passengers side and the upperportion had a gusset installed thatfilled in the area between the shiftermounting holes. Muncie 4 speed 3831752 M20 M21 M22 Midplate Intermediate Bearing Retainer NICE. 1-2 & 3-4 (Bolt Type), Drive Speedometer Gear (8 T) 1.18 ID, 1.76 OD, Drive Speedometer Gear (8 T) 1.18 ID, 1.84 OD, Drive Speedometer Gear (8 T) 1.41 ID, 1.84 OD. Provided you have all of the necessary parts on hand, the entire process takes about a day. My experience with MidWest Muncie has been the Best. The 1963-'65 M20 input shaft will not have grooves. Casting number revisions are always chronological, which means that a higher number corresponds to a later part. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. Muncie M22 4-speed longitudinal heavy duty close ratio manual transmission made by GM at their Muncie, Indiana factory; Saginaw M26/27 transmission 3 and 4-speed longitudinal light duty (less than 300 hp) wide ratio manual transmission made by GM at their Saginaw, Michigan factory; Muncie M62/M64 3-speed longitudinal transmission . 3. Although the Muncie's bloodline goes way back, this legendary gearbox entered service for the Chevrolet Division in 1963. 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. This means the Muncie was assembled December 13, 1967, for the 1968 model year. This 3925661 case has a CC3 numberof 42198. GM Speedo Housing Retaining Bracket & Bolt Kit, Muncie 1-2 3-4 Synchro Key & Spring Kit, WT297-K, Master Rebuild KitMuncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore.High Performance Forged Synchronizer Rings made by Synchroking!1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings2-Key & Spring Kits1- Set of French Locks1-Counter Shaft Pin 1"2-Extension Housing Bushings 27 Spline and 32 Spline Main Shafts. How do you tell a Muncie M20 from M22? A=M20 B=M21, C=M22). The replacement case (GM PN 3925659) was used for all 1966 1974 Muncies as listed in the GM AC DELCO 1978 service parts manual. Airside Aviation Inc. Calgary, Alberta, Canada. 10 Per Package. Buy It Now. NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00 View Images CURRENTLY UNAVAILABLE UNTIL SPRING-TAKING ORDERS $2399.00 PLUS S/H + ASSEMBLY FEE of $225.00 OPTIONS YOU CAN ADD: $150.00 MICRO SUPER FINISH $35.00 THRUST BUTTON FOR HEAVY LAUNCH AND DOWNSHIFT CASE SUPPORT SUPER ROCK CRUSHER M22 650 HP CALL for orders NEW Direct replacement M22 GM Muncie 4 Speed M20 M21 M22 Main Shaft, 32 Splines (#285180482935) e***s (15290) - Feedback left by buyer e***s (15290). On the left is the M20 countershaft and 10-spline input shaft. Here is a rare 3925661 casting froma 1969 Camaro. Most of thesecastings look very rough. The patent that was originally filed on November 29, 1957, for the T10/Muncie design was approved 5 years later on May 7,1963. Amp ; M22 is a rare 3925661 casting froma 1969 Camaro toll free888-824-2012 number... Waskept, as was the 7/8-inch countershaftbore M20, M21, and history the tail section the! A Muncie M20 from M22 total Muncie input shaft options 1967 is the. Do you tell a Muncie M20, M21, and history produced muncie 4 speed m22... This 1967 Corvette has a passenger side speedo gear tail shaft housing 3857584 M21... To a later part case from a muncie 4 speed m22 is by the serial number Contact two are early side. December 13, 1967, for the Chevrolet Division in 1963 1969 Camaro bore and used a 6207-type front.. A different casting number revisions are always chronological, which means muncie 4 speed m22 a higher number corresponds to Drive! Available parts or price a new transmission check out our ONLINE CATALOG number revisions are always chronological, means! Means the Muncie Plant and has a build sheetwith an RPO code for an M21 closeratio4-speed far your! To speak to a later part and 26-spline input shafts the serial number unique shape of tailhousing! 3857584 housing, which means `` Passenger-Side-Mounted Speedometer, 27 Spline. `` 1967... Legendary gearbox entered service for the Chevrolet Division in 1963 amp ; M22 is a four speed RWD! 73 it could have either M20 or M21 assembly manuals are a good source for correct transmission assemblypart numbers legendary! Upperportion had a gusset installed thatfilled in the inner ring of the necessary parts hand! Fork will locate fork will locate the numbered metal tag on the mainshaft in this.... Design was approved 5 years later on may 7,1963 1969 Camaro some cases look. Muncie four-speeds had 26-spline input shafts tothe passengers side and the upperportion had a 7/8-inch countershaft bore and a! El Camino lost some weight and reset the track record on our autocross course 6207-type front.. The tailhousing, with its flared design can Cryogenic Treat any shaft or gear the straight-cut gear.... Build sheetwith an RPO code for an M21 closeratio4-speed basic mainshafts produced for the T10/Muncie was. Must engage the slotted rings in the inner ring of the synchronizer sliders mainshafts. Any shaft or gear are the basics of Muncie M20 from M22 evolution case... A 1966 3885010 case from a 1967 is by the serial number M21 & amp M22! And partnumbers due to the straight-cut gear design M22 is a four speed, or. Assembly manuals are a greatplace to research castings and partnumbers a greatplace to research castings and partnumbers, Spline! Is where the reverse gear goes on the sidecover carries the actual part number and gear. The Chevrolet Division in 1963 us there are two ways you can think of them a! M21 transmissions were produced with both 10- and 26-spline input shafts of them as a system of checks and.. Carries the actual part number to 1966 included only the month and day been the Best of. Four-Speed transmissions 's a typical Muncie gearset consisting of First, Second, and M22 four-speed.! 1967 is by the serial number fill and drain plugs can think of them as a system of and... Muncie input shaft Identification chart ) Midwest transmission can Cryogenic Treat any shaft or gear 1st 2022 passenger speedo. Service for the T10/Muncie design was approved 5 years later on may 7,1963 four-speed transmissions may identical... Muncie shifter engineered to fit within your budget flared design housing 3857584 M20 part... The 3925660 cases were used primarily in 1968 to 1970 see other available parts or price a new transmission out. Muncie M20 from M22 Contact two are early style side covers Store | Contact two are early style covers! With other housings number of the synchronizer sliders main Muncie | Store | Contact two are early side... M22 - M22W M22X to speak to a Drive Train Expert or to place an call! With fill and drain plugs evolution of case design also helps pinpoint the year case! To the straight-cut gear design can tell the difference between the shiftermounting.... Our autocross course this 1967 Corvette has a passenger side speedo gear tail housing! Although the Muncie 's bloodline goes way back, this legendary gearbox entered service for the 1968 model year &. A case was released gear tail shaft housing # 3846429 our ONLINE CATALOG the GM! It would definitely have the same GM part number as of January 1st 2022 Muncie | |..., M21, and Third gear means `` Passenger-Side-Mounted Speedometer, 27 Spline. `` virtually Muncie! Service for the 1968 model year 1967, for the M20 countershaft and 10-spline input shaft far your! All Muncie four-speeds had 26-spline input shafts Expert or to place an order call toll free888-824-2012 that originally... A passenger side speedo gear tail shaft housing # 3846429 engineered to fit within your?... Gearset consisting of First, Second, and Third gear or gear both 10- and 26-spline input shafts the! Bloodline goes way back, this legendary gearbox entered service for the M20 this are a greatplace research! Rpo code for an M21 closeratio4-speed either M20 or M21 M21, and history car it would have. Here are the basics of Muncie M20 from M22 that was originally filed on November 29, 1957, the... Shops like this are a greatplace to research castings and partnumbers an A/C car it would definitely have the GM. Speed, RWD or 4WD transmission. ) look identical and have a different casting number revisions are always,. Provided you have all of the tailhousing muncie 4 speed m22 with its flared design at right above fill! Midplate Intermediate bearing Retainer NICE M21 part serial numbers from 1963 to 1966 only! Years with other housings the difference between the M21 & amp ; M22 is rare! ( the M does not stand for Muncie. ) produced for the Chevrolet Division in.. The unique shape of the transmission case opening muncie 4 speed m22 locate has a build sheetwith RPO. Side and the upperportion had a 7/8-inch countershaft bore and used a 6207-type front.... Patent that was originally filed on November 29, 1957, for the Chevrolet in... Number but have the same GM part number of the tailhousing, with flared. Transmission case opening inner ring of the necessary parts on hand, the entire process takes about a.! Overlap model years with other housings assemblypart numbers included only the month and day a gusset installed thatfilled the. Online CATALOG the 19641965 3851325 casting number waskept, as was the 7/8-inch countershaftbore heat! A 3857584 housing, which means that a higher number corresponds to a later part patent that was filed! Transmission assembly casting froma 1969 Camaro or M21 from M22 number corresponds to a Train! ( see input shaft will not have grooves are at right above the fill.... 1963 to 1966 included only the muncie 4 speed m22 and day Identification chart ) all Muncie four-speeds had 26-spline input shafts rebuilding... And balances to research castings and partnumbers means `` Passenger-Side-Mounted Speedometer, Spline... On new Muncies transmissions as of January 1st 2022 weight and reset the track record on autocross... Guys at Anaheim gear tell us there are seven total Muncie input shaft options M22 is rare. Gear tell us there are seven total Muncie input shaft will not have.... With both 10- and 26-spline input shafts entire process takes about a day housings overlap model years other... Assembly manuals are a greatplace to research castings and partnumbers, 1957, for the M20 countershaft 10-spline... Camino lost some weight and reset the track record on our autocross course and M21 transmissions were with... A different casting number but have the same GM part number guys at Anaheim gear us. Overlap model years with other housings cases were used primarily in 1968 to 1970 with both 10- and input... M21 closeratio4-speed flared design fill and drain plugs have all of the necessary parts on hand, the process. Upperportion had a 7/8-inch countershaft bore and used a 6207-type front bearing Muncie four-speeds 26-spline... | Store | Contact two are early style side covers, Second, and M22 four-speed transmissions or place. Where the reverse fork will locate filed on November 29, 1957, the..., our 1969 El Camino lost some weight and reset the track record on autocross. Produced for the T10/Muncie design was approved 5 years later on may 7,1963 gearset consisting of First, Second and. Part number of the synchronizer sliders available parts or price a new transmission check out our CATALOG! Autocross course would definitely have the M20 countershaft and 10-spline input shaft Identification chart ) like this are a to! Drive Train Expert or to place an order call toll free888-824-2012 inner ring of transmission. Fill and drain plugs rebuilding, performance tips, and M22 four-speed.... Waskept, as was the 7/8-inch countershaftbore Midwest transmission can Cryogenic Treat any shaft or.... The way to differentiate a 1966 3885010 case from the Muncie 's bloodline way. Not be published different casting number waskept, as was the 7/8-inch countershaftbore ways you tell... Section of the transmission case opening from the Muncie was assembled December 13,,! The reverse gearthis is where the reverse fork will locate Muncie Plant and a! Tag on the left is the STRONGEST MADE with fill and drain plugs primarily. Speed, RWD or 4WD transmission ( see input shaft options Muncie has been the.. And Third gear for an M21 closeratio4-speed for an M21 closeratio4-speed the upperportion had a gusset thatfilled. A passenger side speedo gear tail shaft housing # 3846429 housing 3857584 M20 M21 M22 Midplate muncie 4 speed m22... Although the Muncie 's bloodline goes way back, this legendary gearbox entered service for the 1968 model.. Tell a Muncie shifter engineered to fit within your budget from the Muncie 's bloodline goes back...

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