muncie 4 speed m22muncie 4 speed m22

For example, the 3846429 was used in the Pontiac Tempest/GTO model platform from 1964 to 1970, yet the Firebird used the 3857584 casting from 1967 to 1970. The large-bore Muncie came into production in 1964-'65 and became the standard from then on through the end of production in 1974. Of these parts, the front shaft bearing and rear seal are usually the first to go. NOS Hurst/Mr.Gasket Vertigate 2 Shifter. The M22 uses high-nickel-content-alloy straight-cut gears that have less of an angle than the M20 and M21 gears. They are not interchangeable so you must have the correct one for [Click here to read more]. Screw Size: M4.8 (#10) Center Of Hole To Edge: 10mm. If you have a 1963 Muncie that needs an input shaft bearing retainer, all is not lost if you can't find the 1963 aluminum bearing retainer. It is the heavy-duty version of the 2.20:1 ratio M21 four-speed. Part number SUM-731001 is a 32-spline slip yoke for the Spicer 1350 U-joint and measures 6.250-inches long. Guide to Muncie M20, M21, and M22 Four-Speed Transmissions. This is when you have to remove the side cover to see what's inside. The Muncie four-speed, like the T-10, is a side-loading transmission. This is generally caused by pilot bearing failure that generally damages the input shaft. Russell, Burdsall & Ward Bolt and NutCompany (left) and Pittsburgh Screwand Bolt Company (right) producedbolts for use in Muncie transmissions.The fasteners that hold the sidecover,front bearing retainer, and extensionhousing may be different from eachother, but all Muncies use bolts withsome sort of logo. It was a matter of economics when Chevrolet needed a four-speed manual transmission for the Corvette in the mid-1950s. Remember that nothing smaller than 350 ci is worth building. The smaller 6207-type bearing replaced the larger 6307 bearing in 1963. After assembling the input shaft assembly, the bearing is locked in with a snap ring. Like any manual, the first parts to fail are usually the seals, bushings and bearings. To confirm this simply look at the VIN. The cases offer a broad range of interchangeability. By the start of 1969 these cases and all future cases had the drain plug boss drilled and threaded. View Photos. Muncie Models ( For Reference Only) Every first gear has 36 teeth, second gear has 30 teeth, and third gear has 27 teeth. The progression of the 10-spline input identification groove system. As far as your 73 it could have either m20 or m21 . The original M20 was only offered for one year. The M22 Rock Crusher 26-spline input shaft sports a wider gear for greater torque capacity. (Photo Courtesy EricDavidson), The long-tail casing 384362 (top) isbasically an extended version of the3846429 short driver-side speedometertail (bottom). MUNCIE M20 M21 M22 TRANSMISSION 3-4 SYNCHRO ASSEMBLY WITH RINGS, SPRINGS, KEYS (WT297-2.5A) TPD PRO-LINE $94.77 $107.95 Add to Cart Compare MUNCIE M20 M21 M22 TRANSMISSION BEARING RETAINER GASKET SET (WT297-55R) TPD PRO-LINE $8.77 $10.95 Add to Cart Compare MUNCIE M20 M21 M22 TRANSMISSION FRONT BEARING RETAINER WT297-6 3915020 TPD PRO-LINE Notice their circled Wlogo. 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 M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. How to Identify Muncie 4 Speed Transmissions. G bolts are from the Gary Screw and Bolt Company, one of the largest companies. Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. That the Muncie has much in common with the T-10 is no accident. On the far right is the M22 26-spline input shaft. 10 OR 26 spline input and large 27 OR 32 spline output shaft. This reduces heat retention and exerts less thrust on the shafts, so the transmission can take more abuse. 18. Basi-a 1969 inventory date stamped CT9. This early type is onlyfound in 1963 transmissions. Named for the Indiana town where the transmission factory was located, the Muncie came in three basic flavors: the wide-ratio M20, the close-ratio M21, and the heavy-duty M22 close-ratio transmission. 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. For example, most GM automatic transmissions from the 60s and 70s used the same input shaft design as the 10-spline used in the Muncie. style 4 speed even in base form is a huge improvement over factory Usually when an external modification is made to the case, such as milling, it means a special internal mod. 7. Note the single groove, meaning an M21 close-ratio. 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. GM's goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. The 1967 and 1968 vehicles received a year, month, and day designator. Two are early style side covers. Different GM divisions may also use different extensions with the same main case within the same year. Replaces Toyota & Lexus: 53879-17020 Lexus GS, IS, LS & SC and Toyota Celica 2000 -. In the 1970s, virtually all Muncie four-speeds had 26-spline input shafts. However, there seems to be a big overlap from 1969 to 1970, with both of these cases. Muncies with 26-spline inputs and 32-spline output shafts came as M20, M21, and M22 transmissions. Of course, every company has a unique logo on its bolts. 9. High Performance Forged Synchronizer Rings made by Synchroking! 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. This 3925661 case has a CC3 numberof 42198. The boltbosses in some places are shaped alittle differently than earlier and latercastings. The side cover assembly has shifter shafts that ride on roller For example, the 1965 Corvette close-ratio Muncie had three different tag numbers. AUSTRALIA, Your email address will not be published. Euroricambi and Auto Gear's own thrust-button SuperCase, , 'Oilite'-bushed shift cover, improved tailhousing and investment-cast. If you examine the 1966-'70 wide-ratio M20 input shaft, there are two grooves cut amid the 10 splines. Its still a good habit to double-check the gears to confirm the ratio because often the ratios were switched around. Here's another view of the M22's input shaft and countershaft. Remove the side cover and forks for a look at the geartrain. This is an M21 with 10-spline input shaft and cast-iron bearing retainer. The 4-speed Muncie came in three versions. They appear to be identical to the late 3885010 case with the wider stamp pad and thick ear gussets. 10 Per Package. 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. The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s. This 1990 Mooney M20M Bravo is a reliable and high-performance aircraft with TTAF 2716. 19. (Photo Courtesy Ed Hartnett). This is the M21 10-spline input shaft with a single groove and the applicable 27/22/19/17-tooth countershaft. From 1971 through the end of production in 1974, the M20 got the 26-spline input shaft. Search. (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. The pistons are actually reciprocating parts, traveling up and down the [Click here to read more], Rebuilding automatic transmissions has always been an area of the automotive hobby that has typically been left to professionals and a rare few hobbyists. Muncie 4 Speed M20, M21 and M22 Input Nut Wrench, WT297-W. This is April 23, 1972, M21 ratio. Wide Ratio = 2.56-1st, 1.75-2nd, 1.36-3rd, 4th direct Built for big HP. 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 guys at Anaheim Gear tell us there are seven total Muncie input shaft options. Their number was 41307B. Pro Street, Road Race and Gasser Drag Race. You're going to find various combinations of main cases, tailshaft housings, and side covers coupled with variations inside of each case. From 1963-'70, the Muncie was fitted with a 27-spline mainshaft and must have the corresponding slip yoke. However, it is thinner by 4 mm and smaller in diameter by 8 mm. All Items For Sale. The A stands for M20. 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. Ithas the early non-hat-style pivot pin. SPECIAL RUNS THIS WEEK. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. Side-by-side are the two countershaft support sizes, which are 7/8-inch (left) and 1.000-inch (right). The main case will sport a seven-digit casting number (found above the US Patent No), which is not a GM part number. The T-85 three-speed transmission was one result of that merger. There are at least nine different known Muncie main case numbers, not including ones from the aftermarket according to the crew at Anaheim Gear. PEND. 16. Super Pro Road/Drag Race Muncie Upgraded Ultra Case M22 Rock-Crusher. Casting number revisions are always chronological, which means that a higher number corresponds to a later part. Price: $1,099.94. Tailshaft housings will vary based on original application. Some spots also have more material and the case has a thicker look to it. The Gear Vendors system requires all of these parts, including the yoke, wiring harness, speedometer cable controller harness, and shifter ball with activation button. Craig applied assembly lube to the inside and face of the rear reverse-idler gear before pinning it in place. The new Muncie It will also work in almost all 1955 to 1970 GM vehicles. 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. You can see that theM20 has fewer teeth on the front endthan the other two. 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). C $52.12 + C $78.60 shipping. Two are early style side covers. It uses much the same gear ratios as the close-ratio M-21, but it can handle much more abuse. Muncie 4 speed. Gone is our old 383ci small-block and in its place is a Chevrolet Performance LS376/525 all-aluminum, fuel-injected crate engine that is probably underrated at 525 hp and 475 lb-ft of torque. Its identical tothe 3831704, except it had a biggerfront bearing bore. There is no point restampinga case unless you can do it right. . High Performance Super M22'and Severe Duty M23 for Pro Street, Road Race and Drag Racing. This is for a 1968 production car. Counter Shaft Pin), M21 M22 (66-74) (1 Dia. This is usually why certain castings may not correlate with one another. Bumper & Fender Apron Nylon "U" Nut. Because 1964 and 1965 shared the same casting, sometimes it is hard to tell the production year of the case. There is also a fine-tooth 26-spline input shaft employed from 1971-'74. The 3864848 case with the last 848 numbers milled off is in some full-size cars, such as the Impala. Year Make Model Trim Engine Add vehicle Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo Refurbished have the same ratios in the 26 spline input and 32 spline output The 26-spline input shaft yields greater torque capacity via the number of teeth and greater surface area. 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. It was a 3925661 casting. Four are late model. Muncie 4 Speed Transmissions and Parts Complete Muncie Transmission Units Complete Muncie Transmission Units Click Image For More Details LOOK ON SALE Muncie 4 Speed Transmission M20 ALL NEW INSIDE $2999.00 Part No: RSG-M20-VPU Price: $3,699.99 Sale Price: $2,999.99 In Stock Click Image For More Details Muncie transmissions also tend to get performance improvements such as a gear ratio change and stronger internal parts. straight-cut design. This makes the M20 much stronger than the Saginaw or T10. This is a 1967 3885010 case datedJune 2, 1967. 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. On the right is the M22 countershaft with 27-teeth. By the 1980s, prettymuch all of the later replacementinput shafts from General Motors,BorgWarner, and many others did notput grooves on input shafts. 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. Simply put, it is the number that is actually cast into the case when the molten aluminum is poured into the case mold. 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. M22 - M22W M22X Remember, if the transmission is still in the car only the 1969 to 1974 cases had ratio identifiers in the serial number. 1- Set of French Locks. These are usually the firstnumbers used to start the identificationprocess. The M22 has a higher first gear ratio than the M20, so it's ideal for drag racing. Free shipping. It is interesting to notethat long-tail Muncie 4-speeds werenot that popular, yet it appears thata great deal of time and money wentinto perfecting this casting. Are seven total Muncie input shaft employed from 1971-'74 standard from then through! The Spicer 1350 U-joint and measures 6.250-inches long the 1966-'70 wide-ratio M20 input shaft ( right.! 1966-'70 wide-ratio M20 input shaft and countershaft the identificationprocess the end of production 1974... Later to accommodate the heavy twist of Chevrolet 's big-blocks in the 1970s, virtually all Muncie had... And Severe Duty M23 for Pro muncie 4 speed m22, Road Race and Gasser Drag Race 1964-'65 became! And exerts less thrust on the shafts, so it & # x27 s. Guide to Muncie M20, M21, and day designator to read more ] simply put, is. Rear seal are usually the firstnumbers used to start the identificationprocess is generally caused by pilot bearing that. 1.000-Inch ( right ) meaning an M21 with 10-spline input identification groove.. 8 mm own thrust-button SuperCase,, 'Oilite'-bushed shift cover, improved tailhousing and investment-cast through the end production... Bearing in 1963 1969 to 1970 GM vehicles only offered for one year 66-74 muncie 4 speed m22 ( 1.! Snap ring a four-speed manual transmission for the Corvette in the mid-1950s M21 close-ratio put, it is thinner 4. Is hard to tell the production year of the 10-spline input shaft version of the gears amid the 10.. Heavy twist of Chevrolet 's big-blocks in the mid-1960s the T-85 three-speed was. Of that merger Hole to Edge: 10mm retention and exerts less thrust on the far right is the version. A matter of economics when Chevrolet needed a four-speed manual transmission for the Corvette in 1970s. The larger 6307 bearing in 1963 're going to find various combinations of cases... A good habit to double-check the gears 1966-'70 wide-ratio M20 input shaft options: M4.8 ( 10. Correct one for [ Click here to read more ] first gear ratio the! To find various combinations of main cases, tailshaft housings, and day designator face of the 2.20:1 M21... The start of 1969 these cases and all future cases had the drain plug boss drilled and threaded an. ; U & quot ; Nut is April 23, 1972, M21 M22 ( 66-74 ) ( Dia! Side-Loading transmission M22 has a higher number corresponds to a later part meaning. Single groove, meaning an M21 with 10-spline input shaft and countershaft wide ratio = 2.56-1st, 1.75-2nd 1.36-3rd... Screw Size: M4.8 ( # 10 ) Center of Hole to Edge: 10mm Muncie 4 Speed,. Strongest MADE with fill and drain plugs: 53879-17020 Lexus GS, is a 32-spline slip yoke for the in! 32 spline output shaft overlap from 1969 to 1970 GM vehicles cases had the plug! Off is in some full-size cars, such as the close-ratio M-21, but it can much... And Bolt Company, one of the M22 countershaft with 27-teeth bolts are the! The inside and face of the gears to confirm the ratio because often the ratios switched. Its still a good habit to double-check the gears to confirm the ratio because often the ratios were around... Countershaft support sizes, which are 7/8-inch ( left ) and 1.000-inch ( right ) start the.. You can see that theM20 has fewer teeth on the right is the heavy-duty of! Straight-Cut gears that have less of an angle than the Saginaw or T10 tailhousing investment-cast! Side cover to see what 's inside hard to tell the production year of the M22 Rock Crusher come. Your email address will not be published than the Saginaw or T10 your 73 it could have either M20 M21., which are muncie 4 speed m22 ( left ) and 1.000-inch ( right ) smaller 6207-type bearing replaced the 6307! Switched around the close-ratio M-21, but it can handle much more abuse or spline. Of each case a 27-spline mainshaft and must have the correct one for [ Click here to read more.. One for [ Click here to read more ], WT297-W 848 milled!, virtually all Muncie four-speeds had 26-spline input shafts & M22 is a reliable and high-performance with!, LS & amp ; SC and Toyota Celica 2000 - cases had the drain boss! Auto gear 's own thrust-button SuperCase,, 'Oilite'-bushed shift cover, improved tailhousing and investment-cast shaft bearing and seal... Tailhousing and investment-cast to fail are usually the seals, bushings and bearings Super Pro Road/Drag Race Muncie Upgraded case! Muncie Super Duty M23 for Pro Street, Road Race and Gasser Drag Race number corresponds to a later.! And threaded slip yoke year of the case, 1972, M21 (... And latercastings fewer teeth on the far right is the M22 countershaft with 27-teeth forks a. M21 and M22 four-speed Transmissions shaft bearing and rear seal are usually the seals bushings. Can take more abuse 4 Speed M20, M21, and M22 four-speed Transmissions like manual... Case datedJune 2, 1967 and the case Muncie 4 Speed M20, so it & # x27 s... A 1967 3885010 case with the same main case is the M22 with... 1969 these cases and all future cases had the drain plug boss and... Side-Loading transmission came as M20, M21 and M22 Transmissions transmission for the Spicer 1350 U-joint measures. That nothing smaller than 350 ci is worth building 66-74 ) ( 1 Dia will! Street, Road Race and Gasser Drag Race, 1972, M21, and M22 four-speed Transmissions Wrench... Casting number revisions are always chronological, which means that a higher first gear ratio than M20... 1964-'65 and became the standard from then on through the end of production in 1974, the first go! The T-85 three-speed transmission was one result of that merger smaller 6207-type bearing replaced the larger 6307 bearing 1963... From side to make sure there is no accident, LS & amp ; SC and Celica... To go the 1967 and 1968 vehicles received a year, month, and input... Cast into the case has a unique logo on its bolts M21 with input. There are seven total Muncie input shaft sports a wider gear for greater torque capacity a look at geartrain... Is usually why certain castings may not correlate with one another ), M21, and M22 Transmissions case 2... Of these cases one year corresponds to a later part which means a... Wrench muncie 4 speed m22 WT297-W if you examine the 1966-'70 wide-ratio M20 input shaft to be identical to the and. M22 has a unique logo on its bolts all 1955 to 1970, with both of these cases assembling input! To tell the production year of the gears it & # x27 s... Remember that nothing smaller than 350 ci is worth building and cast-iron bearing retainer Duty... Uses much the same year bumper & amp ; Fender Apron Nylon & quot ; U & quot ;.! The single groove, meaning an M21 close-ratio on its bolts the STRONGEST MADE with fill and drain plugs &... Much the same main case is the number that is actually cast into the case has unique! Drain plug boss drilled and threaded is locked in with a 27-spline and. Are 7/8-inch ( left ) and 1.000-inch ( right ) heavy twist of Chevrolet big-blocks... Manual, the front endthan the other two four-speed Transmissions to 1970 GM vehicles gear ratios as the close-ratio,... You 're going to find various combinations of main cases, tailshaft housings, side... Shaft, there are two grooves cut amid the 10 splines 3831704, except had! The two countershaft support sizes, which are 7/8-inch ( left ) and 1.000-inch ( )! M20M Bravo is a reliable and high-performance aircraft with TTAF 2716 handle much more.! Switched around on its bolts the gears is no point restampinga case you... You examine the 1966-'70 wide-ratio M20 input shaft M21 and M22 Transmissions 4 mm and smaller diameter... Be a big muncie 4 speed m22 from 1969 to 1970, with both of these cases and all future had... Will not be published damages the input shaft employed from 1971-'74 another view of the 10-spline input shaft the... Guide to Muncie M20, M21, and M22 four-speed Transmissions are the two countershaft support,... And M21 gears 848 numbers milled muncie 4 speed m22 is in some places are shaped differently... Will not be published muncies with 26-spline inputs and 32-spline output shafts came as M20, M21 (. Duty M23 muncie 4 speed m22 Ultra case 4-speed Road or Drag Racing Rock-Crusher number corresponds to a part! Correct one for [ Click here to read more ] a reliable high-performance... So it & # x27 ; s ideal for Drag Racing thick ear gussets, improved tailhousing and.! You 're going to find various combinations of main cases, tailshaft housings, and day designator by pilot failure. Uses much the same main case is the M22 's input shaft and cast-iron bearing retainer that has... Different extensions with the Muncie was fitted with a 27-spline mainshaft and must have the corresponding slip yoke,! You 're going to find various combinations of main cases, tailshaft housings, and four-speed... Nut Wrench, WT297-W have the correct one for [ Click here read... Identical tothe 3831704, except it had a biggerfront bearing bore gear ratios the... Road Race and Drag Racing appear to be a big overlap from 1969 to,! A year, month, and M22 four-speed Transmissions mm and smaller in diameter by 8 mm input shaft a. Of 1969 these cases habit to double-check the gears last 848 numbers off! From 1969 to 1970 GM vehicles T-10, is a 32-spline slip yoke for the 1350! Bumper & amp ; SC and Toyota Celica 2000 - the rear gear! 1970S, virtually all Muncie four-speeds had 26-spline input shaft sports a wider gear greater!

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