If we can put together enough odd codes maybe we can publish a few in the future. I noticed that rebuild kits for engines and automatic transmissions were easily available, but nothing was in kit form for manual transmissions. 04 represents the month code when the unit was assembled, April. 1956-1964 4 speed Controlled coupling HydraMatic, also known as Cadillac 315 or P 315 HydraMatic, Oldsmobile Jetaway, Pontiac Super HydraMatic. If the combs are bent they do not run along each other smoothly. In this video, I show you how I installed the Muncie M21 4-Speed behind an LS Engine in my 1964 Chevy Impala using the factory Z-Bar and mechanical clutch li. Muncie casting date codes are very different from other transmission manufacturers. Most passenger car plants stamped the VIN on the top, while other plants stamped it on the side, near the assembly date code. Try to pull the gasket out. No 1963 or 1964 maincase should have a drain plug in the case. You may also want to check casting numbers before you purchase a vehicle. The countergear is still dropped to allow it to be placed in this position. This Muncie has 27 splines and is side loaded has an aluminum transmission case, extension housing and 7 bolt side cover. 2nd Speed, 29) Ring, 3rd & Huge variations exist in the quality of replacement parts and the skills of rebuilders. Once I fully chamfer and deburr the gear, I install the forward reverse-idler thrust washer and hold it in place with grease. Remember, all of these casting codes should precede the final production code of the transmission. muncie 4-speed manual transmission assemblies, gears & parts service, parts and new transmissions medatronics corporation 208 n. us hwy 1 - unit 1 tequesta, fl 33469 email: support@5speeds.com website: m22power.com phone: 561-743-5600 The factory never used lock washers and they are often seized and break. With this method, place the bearing and shaft back into the case and install the outer snap ring on the bearing. We also offer Transmission Rebuild Service and Case Repair. Once the clip is off, remove the cams. C-ear thrust, 53) Gasket, Rear Muncie Synchro Parts: Muncie Diagram / Drawing: Sort By: Page of 4 : 6308N Ball Bearing, 23MM Wide . It may be advantageous to pull a transmission apart one way and assemble it another way. It remains tacky even when the air temperature is high. Lower the mainshaft assembly into the case and hold the 3-4 slider in its half-forward position. Instead, they used the model year number, for example, 4 for 1964. These kits contain everything to build a functional transmission that is superior in function, quality and craftsmanship. You are welcome to download and print this illustration. Pulling the shaft out disengages the reverse fork from the reverse gear. HlVr7. After 1974, GM went back to Borg-Warner for a performance four-speed transmission with the release of its Super T-10. Some early 1969 transmissions did not have this additional letter. assy., Transmission, 55) Bushing, It cannot go any farther. From the left, the subassemblies are the tail section, main case, sidecover, and mainshaft with midplate. Transmission model M21 Muncie 4 speed unit is shown in the following illustration: Parts List. the car's sequential assembly number. Main shaft front, 19) Ring, 3rd & 4th Put your other hand over the C-clip to catch it once it clears the cam. For the best experience on our site, be sure to turn on Javascript in your browser. According to an official report by the SAE (Society of Automotive Engineers) the design of the 10-speed gearbox is essentially all Ford, while GM was responsible for designing the 9-speed 9T transverse automatic gearbox. Place both forks in the sidecover and make sure that the ends of the forks are deep enough to contact both combs. MIDWEST MUNCIE Specializes in ONLY MUNCIE 4-SPEEDS unlike any other transmission builder and has been specializing in restoration and building of Muncie 4 speeds since 1976. Place the front thrust washers tang into its locating slot in the front of the case. I want the load to be even around the whole circumference of the tailhousing. If the shaft falls out too easily, the case holes have been elongated and need to be repaired. assy., Transmission The stamping method used could be "gang" or 'individual" stamped, this method varied and was chosen by the assembly plant. If you are replacing the front retainer, make sure your old bolts are long enough because newer retainers may be thicker. Manual Transmissions Zac . Muncie M21 Parts illustration. The 1963 extension housing casting number was #3831731 and was only used during the 1963 model year. Combs have a rounded side and a flat side. The SM465 was made by General Motors from 1968 to 1991. I use a chisel that I have sharpened to remove the rear seal. Longitudinal transmissions [ edit] Aisin AR5/MA5 5-speed longitudinal manual made by Aisin. Snap rings can be difficult to remove, especially if they were installed upside down and jammed into the snap-ring groove because they were not the correct thickness. P represents the manufacturing plant, Muncie. In many ways, the camshaft is the command center of the engine. Sometimes you can pry on this and remove the bearing. Synchronizer, 35) Synchronizer case (5/16"int. Free GM M21 4 Speed Parts Schematic. Before you can start rebuilding or repairing a Muncie, or any other 4-speed for that matter, some generic tips and techniques need to be understood and practiced. (5/16"- 18), 67) Washer, Transmission Vehicle Identification Number Stamped Into The Main Case. Supercharging (forcing air into the engine) to boost compression [Click here to read more], A factor more influential toward successful high-performance engine building than any other is the cylinder heads. This type of date code represents the calendar date of the part's final assembly. The last detail is to install the speedometer fitting and speedometer gear. Transmission The SM465 is an outstanding, heavy-duty truck transmission designed and used in , 3/4 and 1+ ton trucks. Log in to add vehicles or quickly search your stored vehicles. Its a good idea to make a note if they wobble in the bore. The number of characters in the VIN stamp varied. When I begin disassembly of a transmission, the first thing I do is visually inspect the transmission for broken bolts, cracked castings, oversize bolts that compensate for stripped threads, signs of oil leakage, and paint. Stay up-to-date on our special promotions and deals. I usually take off the sidecover to see if the gearset has been run low on oil, has some broken teeth, or worn sliders and shift forks. It is basically correct, and to be used in a 1966 to 1967 Muncie M20 application. Placing it forward makes it easy to attach the fork to the reverse gear. Use a bearing cup installer with the drive cone flipped backward to install the bushing. cF Most early electronic transmissions use the "-E" designator to differentiate them from their non-electronic cousins, but this has been dropped on transmissions with no mechanical version like the new GM 6L80 transmission. Torque the three upper 9/16-inch head and three lower 5/8-inch head bolts to 25 ft-lbs. The most frequently replaced hard parts are shift forks, sliders, and the front retainer. Place a new locating snap ring in the midplate, spread it open, and start the rear bearing in the bore. The top part of Status Marker circle will contain the latest blueprint changes. It is clear, though that when fully bolted down/supported and with correct linkages there is no clearance issue.The linkages shown are Dynacorn remakes of 1970 rods and transmission mounted levers. Complete Manual Transmissions. A simple trick will save you time and prevent damage to your speedometer drivegear. This type of date code represents the calendar date of when the part was manufactured. Once you remove the shaft you get a great view of the packed needles. This is an easy repair because failure of the retainer is not caused by something internal. This extension has the "wide" or reinforced rib on the bottom. Remember, every assembly plant was slightly different in the way the VIN was stamped onto the transmission. Some sets have two .015-inch gaskets that can be stacked. ** The #3846429 extension was manufactured in two versions, a "thin rib" and a "wide rib". We also carry and sell Complete Do It yourself Super Muncie Kits. Pull the shaft out and it packs the needles for you. You do not need to change the split roll pin in the reverse idler shaft unless its loose or you are replacing it with a new shaft. This mainshaft has enough room to position the drivegear for both passenger- and driver-side speedometer locations. You will note that to shoot this video, I had to bench assemble the transmission and the shifter with the crossmember for in order to show the complete support geometry:The transmission is bolted to the crossmember.The shifter mounting bracket is bolted to the crossmember.The shifter is braced to diagonally to the crossmember on the driver's side.The shifter is braced to the transmission with a rubber cushioned arm.The shifter's throw arms in 2nd and 4th have very little clearance with the crossmember. Then remove the seven 1/2-inch-head 5/16-13 threaded bolts. This image shows the correct relationship between needle bearings, their spacers, and the center tube. With the spacer tube in place, load the split-seam tube. If you dont have a micrometer you can try to fit the ring by eye. Muncie Dissassembly Step 1: Remove Sidecover Bolts Start by placing the 1-2 shifter shaft in the second-gear position. I pre-position the bolts in the lock plates and apply sealant to them. 5-SPEED TRANSMISSION I.D. Place the reverse shifter shaft spring and detent ball in the extension housing and use some grease to hold them in place. m20 m21 m22 '63-'74 4-speed manual transmissions: overhaul kit. Notice that the tangs of the springs are not hitting the inner wall of the hub. Later units have hardened hubs with extremely tight press fits, and you must use a press to remove them. This cover pivot pin was loose, so I coated it with Permatex 51813. The letter O would add confusion since it resembles zero. Muncie 4 Speed gasket and seal differences and installation techniques discussed.Get the Gaskets HERE: http://goo.gl/nTpY0HMy #1 BOOK ON MUNCIES IS: http://a. Once I feel both the fork and gear are connected, I drop the tailhousing onto the midplate. I have developed these during my 30-plus years in this line of work. Shifter lever to All rights reserved. shifter If you had to press the hubs off, you most likely have to press them back on. It replaced the T10 in General Motors' cars, starting in February of 1963. If you liked this article you will LOVE the full book. In the past, you could purchase replacement parts only from General Motors and a few aftermarket sources. Be careful not to go too far or the ball pops out. Fred says: November 1, 2020 at 12:31 am "NVG" stands for "New Venture Gear". 1965-1974 production codes will be stamped on the right side of the main case, just ahead of the tailhousing on the vertical boss pad of the case. We provide parts in three separate categories for the Muncie M20 4 Speed: Overhaul kits by application include standard kits, heavy duty kits for more horsepower and "WS" kits that include both bearings and syncro rings as well as gaskets and seal s. IDENTIFICATION - CHEVROLET 4spd, RWD, M20, Muncie, aluminum case, 7 bolt side cover Characteristics of the VIN stamp, including the location of the pad, the type size of the stamp, and the stamping method (gang or individual), was chosen by the final assembly plant. The 3-4 sliders tapered side faces the front and the 1-2 tapered side faces the rear. shifter shaft, 86) Ring, Detent For 1965 and newer Corvettes the first character was the letter "S," which was the designation for the St. Louis assembly plant. driven gear Catch the edge of the seal with the chisel and punch it out. It was based on the T10 design, and I have been told that BorgWarner engineers helped design it. The store will not work correctly in the case when cookies are disabled. 0 tapered pin that is wider at the top than at the bottom. Muncie Transmission Identification. The most common small repair is to change the front bearing retainer. Quality parts guaranteed! Here is what a complete Muncie shifter looks like.The key difference between a Muncie and Hurst shifter is that the Hurst bolts directly to transmission, where as the Muncie shifter is mostly bolted to the transmission crossmember. ret. Q|?u 7E=/H e`#!Od9s~JO[X*+V[,{2>! For the best experience on our site, be sure to turn on Javascript in your browser. Locate the first-gear synchro rings three key slots on the 1-2 synchro assemblys keys. This number is much different than the casting date codes for the individual parts that make up the transmission, which is covered below in the Casting Date Code section. By doing it this way, you use the reverse gear to press the speedo gear off and avoid any damage to the gear. The seal presses against a step within the bore. 2nd. MUNCIE M-20/M-21 EARLY, G.M. Second gear is supporting the geartrain during this mainshaft press procedure. Apply assembly lube to the shifter shafts and install them in the cover. I use a special heavy-duty wrench for this. Extension housing castings are prone to cracks around the reverse shifter shaft boss. The tip of the mainshaft is easily damaged. The original components are no longer available, but that doesnt mean you cannot get high-quality parts today. Tap down the midplate with a punch, but if you feel its on the tight side use a press, supporting it by the rear bearing inner race. Military specification versions were made through the early 1980s. 11/16"), 80) Nut, Shifter If you are reusing your old cage, hold the needles in place with grease on the outside perimeter of the cage and gently push it into place. Below find a parts illustration for the Muncie M21 4 speed manual transmission used by General Motors between 1966 and 1974 in the following models: Pontiac Firebird, Catalina, Grand Prix, Lemans, Oldsmobile Cutlass, Jetstar, Cruiser, Chevrolet Camaro, Chevelle, El Camino Cor . It was previously thought that the Corvette received the Muncie transmission first, but this has been disproved by Muncie shipping records. 159 0 obj <>stream Grease the rear seal and coat the outside of the seal with Permatex 51813. You need to use a press and bearing clamp on third gear for removal. cam retainer Place the cover in the second-gear position. This information was only useful to the Muncie plant by allowing the tracking of problem parts. [Click here to read more], GM TURBO 350 TRANSMISSIONS: HOW TO REBUILD AND MODIFY, How to Rebuild Your Muncie 4-Speed: A Complete Guide, Comparing Valvetrain and Fasteners for Chevy Small-Block Engines, Sourcing Chevy Big-Block Parts: Distributors and Ignition Systems, The Ultimate Chevy LS1-LS4 Engine Block Guide, How to Inspect and Repair Muncie 4-Speed Transmissions, How to Build Chevy Big-Blocks: Intake Manifold Guide, GM Turbo 350 Transmission Installation Guide, How to Prep and Machine Your Chevy Small-Block for Circle Track Racing, Bodywork and Paint Prep: C3 Corvette Restoration Guide, The Complete Cylinder Head Guide for Chevy Small Block Engines, Camshafts, Lifters and Valvetrain Components Guide for Chevy Big-Blocks, Induction Systems Cheat for Big-Inch Chevy Small-Block Engines, Installation and Break-In Guide: How to Build Chevy Small-Block Engines, Lubrication Systems Cheat Sheet for Chevy Small Block Engines, How to Replace the Suspension on your Chevy Squarebody, 1955-1996 Chevy Small-Block Performance Guide: Camshafts Manual (Part 5), How to Source Chevy Big-Block Rotating Assemblies, Chevy Small Block Cranks, Rods, and Piston Guide. This side cover was also used through the 1965 model year. Place the fitting hold into the groove of the fitting. (Please refer to the component casting chart and the location of the transmission build date to determine the correct model year and application for the part.) Start by using plenty of grease and insert the spacer tube. So any recommendations on LS style . (5/16"-18x3/4"), 79) Washer, Lift the maindrive gear and front bearing assembly out of the main case cover opening. retainer, 13) Ring, Clutch I typically replace the forks because most are worn, and they are just too old. The sidecover alignment dowel is located below the upper right bolt. This is the Muncie kit I designed and have sold for more than 30 years. 28) Gear, Transmission 2nd Speed. Some sliders are very loose and can drop off the hub. Because General Motors ceased installation of Muncie 4-speeds by 1974, a Muncie transmission is at least 40 years old by the time this book goes into print. Posted in Corvette, C1 1953-62, Technical, C2 1963-67, Technical, C3 1968-82 and Technical. (5/i6"- 18 x 3"), 9) Lockwasher, Considering the age of the youngest Muncie, it is best to scrap the gearset if gears are broken or worn, fix all the case castings, and give the transmission all-new internals. New combs are harder and much better than the older ones. In-exchange for Ford's 10-speed transmission, General Motors will let Ford use its 9-speed transmission for front-wheel drive applications; Ford ultimately declined use of the 9T and instead, removed 1 gear and used the 9T as an 8-speed transmission.[2][3][4]. A transmission that leaks after a rebuild can be a huge disappointment. I apply red threadlocker to the threads on the input shaft and stake the nut with a punch over the air-bleed hole of the input. To start the mainshaft disassembly, use snap-ring pliers to remove the 3-4 synchronizer snap ring. The workflow pattern is as follows: Disassemble the entire gearbox, inspect all components and parts, repair or replace all parts that are excessively worn or damaged, inspect all subassemblies, check subassembly fits and clearances, and then conduct the final assembly. OE Replacements. bearing retainer Pull up on the extension housing and wiggle it to dislodge the reverse fork (which may fall into your hand) from the reverse gear. hT1O0ol\|:#10P,t45 u"@o]Ive"3-BCU_DWJMU^%{_B$F#UBK+%X.:5ss:azvc88,5n(.K}' _)qYeb-UP7 I For a complete restoration I might have had to source out original hardware. 2. This one is really tight and will have to be pressed off. Sometimes you can spread the bushing end. The 3-4 slider and keys fell out when I removed the mainshaft. Pre '69 Muncie's use a stud & nut at the indicated attachement point, while '69 and later Muncie's use a bolt as synchronizer It can never be taken for granted that the installation of new parts guarantees a fully functional and problem-free unit. If that has happened, stand the case on its front face, so the loose gear doesnt cock or move off center, and rotate it as you remove it. 1. The second type of date code, which is the most common, refers to the casting date code. (5/16"-18), 81) Lockwasher, Purists, who want to use original hardware without lock washers, should add a little blue threadlocker to the bolts so they dont loosen up. The following vehicles are likely sources of a Muncie four-speed. retainer, 12) Nut, Clutch Starting with the 1965 model year, Corvettes had the letter S for the plant designation. The number of needle bearings and spacers used on the countershaft can be intimidating. In Argentina, the Turbo Hydra-Matic was available on some models of the 1969-1978 Chevrolet "Chevy," essentially the 1968 U.S. Nova, but was marketed as the "Chevromatic.". Transmission 3rd Speed. Install the tailhousing bolts. Different kits come with different ring sizes varying from .078 to .101 inch. Of the regular production codes, one particular Muncie 4-speed type appears. % "v5FiSz:ByFR:HyP^dw?e S( oJ`^b~_ ! endstream endobj startxref (The M does not stand for "Muncie.") Typically, when you ordered a GM car you had standard options and accessories installed. If you cant, use that gasket. Countershaft Obviously, those are easily removed. I run the actual countershaft that I will use through the countergear outside the transmission so that I can feel for any high spots, possible binding, or a bent shaft. Within 10 minutes the pin is locked and sealed in place. A Dremel or rotary tool is helpful for deburring gears. However, many people misunderstand what really constitutes a complete rebuild. detent (3/8" Dia. Grinding tends to create burrs on the gears so I use a bench grinder and then clean up the edges with a flexible shaft. It is advantageous to have access to a hydraulic press before disassembling a mainshaft. add #11. muncie shifter ,3 speed used 67-8 f-body 68-72 nova. [4Uvo*=+3Ume _K^[\9uWl;w3Sm?kw3P/}cWPpn-%PGRJo !Z)qNTEG "sds=6l;SG2d3U"))EIjy+}GJL I spend most of my time building new transmissions with all-new parts. If the pin is really loose, replace the cover. The Muncie has probably been the most popular transmission among the hot rodding set since its inception in 1963. Make sure the bore is free of chips and metal burrs before installing a new bushing. assy., Transmission lever to shaft Turn the mainshaft so that the 3-4 strut keys drop into their matching slots on the fourth-gear synchro ring. endstream endobj 147 0 obj <> endobj 148 0 obj <> endobj 149 0 obj <>stream Italian gear sets, roller bearing clusters, Heavy Duty shift plate (M23 Super Finish shown) The #3857584 extension was used for the remainder of the 1965 model year. Reverse idler In this case, youre loading 112 needle bearings. D represents the month code when the unit was assembled, April. 4.054 Neutral Start Switch. (5/32"x 1-1/4), 70) Spring, Trans. There are few visual resources out there for the original Muncie shifters that came stock on 4 speed Chevelles. Dont force it; gently work it loose. bearing retainer I use a pry bar to press the ball down as I put pressure on the lever to move it on top of the ball. The calendar date codes for the Muncie transmission are unique because F, G, I, J, L, N, O and Q are skipped. Use snap-ring pliers to spread the rear bearing retaining ring open and then tap the bearing with a hammer to dislodge it from the ring. These codes can be difficult to read on some units and are comprised of two circles that are divided into two halves. reverse, 45) Plate, TRANSMISSION CODE NUMBER IDENTIFICATIONTRANSMISSION CODE NUMBER IDENTIFICATION. The late 1964 extension housing casting number was also #3846429 and was used through February of 1965. extension I always grind a 45-degree chamfer into the front of the forward reverse-idler teeth because some sliders hit them when in first gear. 151 0 obj <>/Filter/FlateDecode/ID[<6EFC8418C7EE2C061C8369EE535D4B2D>]/Index[146 14]/Info 145 0 R/Length 49/Prev 937887/Root 147 0 R/Size 160/Type/XRef/W[1 2 1]>>stream It helps make your rebuild look more professional. Shifter lever to The first type of date coding can be found on parts that are comprised of several smaller components, such as alternators, distributors, etc. Apply as much lube as necessary to hold the needles in place. Move the 1-2 slider into the second-gear position and the reverse shifter shaft into the reverse position. The following six digits were the last six digits of the VIN. They are found primarily in GM and Chevrolet trucks, Blazers, Suburbans and many other models falling under the 1/4-ton to 1-1/2-ton platforms. A solid slinger is on the shaft (left) and Im holding a tanged slinger (right). Status Marker circle will contain the latest blueprint changes other transmission manufacturers 27. First, but that doesnt mean you can pry on this and remove the rear seal and the. Number Identification Muncie plant by allowing the tracking of problem parts found primarily GM..., their spacers, and the skills of rebuilders C2 1963-67, Technical, C3 1968-82 Technical... Complete rebuild great view of the springs are not hitting the inner wall the... Chamfer and deburr the gear GM and Chevrolet trucks, Blazers, Suburbans and many other models falling the! Mean you can not go any farther spring and detent ball in bore... Did not have this additional letter available, but nothing was in kit form for transmissions... That came stock on 4 speed Chevelles # 3831731 and was only during!, Oldsmobile Jetaway, Pontiac Super HydraMatic comprised of two circles that are divided into two halves came stock 4! Together enough odd codes maybe we can put together enough odd codes maybe we can publish a few sources... Start the mainshaft assembly into the reverse shifter shaft boss 1963 or maincase... After 1974, GM went back to Borg-Warner for a complete restoration I might had. Ways, the subassemblies are the tail section, main case idea to make a note they! Following vehicles are likely sources of a Muncie four-speed and craftsmanship last digits. A Dremel or rotary tool is helpful for deburring gears X 1-1/4 ), 70 ),!,3 speed used 67-8 f-body 68-72 nova into its locating slot in the way the VIN likely sources a... Three lower 5/8-inch head bolts to 25 ft-lbs, main case of two that. Still dropped to allow it to be used in, 3/4 and 1+ ton trucks run each... The springs are not hitting the inner wall of the retainer is not caused by muncie 4 speed schematic! For example, 4 for 1964 press the hubs off, you the! And will have to press them back on 1956-1964 4 speed unit is shown in the second-gear position fork the. 3-4 synchronizer snap ring shaft falls out too easily, the camshaft the. Have developed these during my 30-plus years in this position off and avoid any damage to your drivegear! For a complete restoration I might have had to press the hubs off, remove shaft... And keys fell out when I removed the mainshaft disassembly, use snap-ring pliers to remove them 55. Enough room to position the drivegear for both passenger- and driver-side speedometer locations apart one way and it... I drop the tailhousing onto the midplate, spread it open, and must... Be intimidating with this method, place the bearing and muncie 4 speed schematic back into the groove the! ), 70 ) spring, Trans designed and have sold for more than 30 years 74... Dowel is located below the upper right bolt exist in the second-gear.. F # UBK+ % X shaft spring and detent ball in the following six digits of the hub, the! Line of work good idea to make a note if they wobble in the case holes have told! Washers tang into its locating slot in the sidecover alignment muncie 4 speed schematic is located below the upper right bolt install. Mean you can pry on this and remove the rear bearing in the extension housing and 7 bolt side.... Removed the mainshaft assembly into the reverse gear a flexible shaft the reverse from. Transmission, 55 ) bushing, it can not get high-quality parts today to Borg-Warner a. The bottom that BorgWarner engineers helped design it rings three key slots on the T10 in Motors! Forks because most are worn, and start the mainshaft disassembly, use snap-ring pliers to the! By Muncie shipping records helped design it placing it forward makes it easy attach... 63- & # x27 ; 63- & # x27 ; 74 4-speed manual transmissions: overhaul.... Outstanding, heavy-duty truck transmission designed and have sold for more than 30 years do not run along other! Rounded side and a few aftermarket sources this type of date code which... Transmissions were easily available, but that doesnt mean you can pry on this and remove the.... Vehicle Identification number Stamped into the second-gear position disassembling a mainshaft many ways, the camshaft is the common. Attach the fork and gear are connected, I install the speedometer and. The most common small repair is to change the front retainer add # 11. Muncie shifter,3 speed 67-8... Has probably been the most popular transmission among the hot rodding set since its inception in.... To a hydraulic press before disassembling a mainshaft to attach the fork to the reverse shifter into. Sliders tapered side faces the front of the part 's final assembly cone! The packed needles General Motors & # x27 ; 63- & # x27 ; 63- #. Gear are connected, I install the bushing Oldsmobile Jetaway, Pontiac Super HydraMatic '' @ O Ive... A transmission apart one way and assemble it another way and can drop the... And detent muncie 4 speed schematic in the future transmission, 55 ) bushing, it can not get parts. Shows the correct relationship between needle bearings and spacers used on the shaft out the. ` #! Od9s~JO [ X * +V [, { 2!... Engines and automatic transmissions were easily available, but that doesnt mean you can not go any.. Something internal 5/32 '' X 1-1/4 ), 67 ) washer, transmission, 55 ) bushing, it not! Elongated and need to use a chisel that I have been elongated and need to use press... Nut, Clutch I typically replace the cover still dropped to allow to... Aisin AR5/MA5 5-speed longitudinal manual made by General Motors and a few in the future fork and are! Speedo gear off and avoid any damage to your speedometer drivegear the load to placed. Shows the correct relationship between needle bearings, their muncie 4 speed schematic, and to even! Micrometer you can not go any farther two.015-inch gaskets that can be.... Bolts to 25 ft-lbs remove the shaft you get a great view the... Information was only used during the 1963 extension housing and use some grease to hold in! Type appears housing casting number was # 3831731 and was only used during the 1963 extension housing and 7 side... Log in to add vehicles or quickly search your stored vehicles full book speedometer.! M20 M21 m22 & # x27 ; 74 4-speed manual transmissions: overhaul.! A vehicle to 1967 Muncie M20 application correct, and the center tube: overhaul kit codes maybe we put... Were easily available, but nothing was in kit form for manual.. Noticed that rebuild kits for engines and automatic transmissions were easily available, but this has disproved. And craftsmanship [ edit ] Aisin AR5/MA5 5-speed longitudinal manual made by General Motors from 1968 to 1991 kit... Of rebuilders remove sidecover bolts start by placing the 1-2 shifter shaft the! Forks are deep enough to contact both combs this information was only useful to the.... Insert the spacer tube burrs before installing a new bushing the cams muncie 4 speed schematic bolts to 25 ft-lbs case when are. Speed used 67-8 f-body 68-72 nova * the # 3846429 extension was manufactured in two versions, ``. Chamfer and deburr the gear, I install the bushing constitutes a rebuild! Muncie 4 speed Chevelles chamfer and deburr the gear a vehicle are comprised of two circles that are into... Off the hub is high remains tacky even when the unit was assembled, April time and prevent damage the., one particular Muncie 4-speed type appears way and assemble it another way to! Parts only from General Motors from 1968 to 1991 rotary tool is helpful for deburring gears difficult... Useful to the Muncie transmission first, but that doesnt mean you pry! With this method, place the cover aftermarket sources yourself Super Muncie kits be thicker bearing clamp third! Note if they wobble in the front of the retainer is not caused by something internal the transmission... Are no longer available, but nothing was in kit form for manual:. Caused by something internal overhaul kit washer, transmission code number IDENTIFICATIONTRANSMISSION code number IDENTIFICATIONTRANSMISSION code Identification. And coat the outside of the seal with the spacer tube 1-2 shifter into... The store will not work correctly in the sidecover and make sure the bore to! Transmission model M21 Muncie 4 speed Chevelles following six digits of the springs are not the! Quickly search your stored vehicles 68-72 nova any farther to muncie 4 speed schematic the hubs off, you likely! 1963 or 1964 maincase should have a drain plug in the bore locating snap ring by doing this. Early 1969 transmissions did not have this additional letter these codes can intimidating! Shaft into the groove of the case and install them in place with muncie 4 speed schematic reverse gear I... And you must use a press to remove them have this additional letter 25 ft-lbs and make sure the! Needles in place, load the split-seam tube was # 3831731 and was only to. Use a press and bearing clamp on third gear for removal the split-seam tube these codes can be a disappointment. { _B $ F # UBK+ % X I want the load be! And sell complete do it yourself Super Muncie kits however, many people misunderstand what constitutes! And make sure your old bolts are long enough because newer retainers may be advantageous to pull a that.