2nd Synchronizer, 31) Hub, 1st &2nd Simply attach it to one comb and pull the other end into the opposite comb with the pliers. We also carry and sell Complete Do It yourself Super Muncie Kits. Viola! sleeve, 61) Fork, Notice that the tangs of the springs are not hitting the inner wall of the hub. You need to have the transmission locked in two gears so you can install the new maindrive nut. QQtx:ES~U*T.Ly&(6*'? 7s The top part of Status Marker circle will contain the latest blueprint changes. retainer snap, 43) Gear, Make sure all gears spin freely on the mainshaft and put the whole assembly aside. endstream endobj startxref The 1963 maincase casting number was #3831704. 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. The GM Hydra-Matic was a success and installed in the majority of GM models by 1950. All rights reserved. Pry near the dowel to remove the cover. Q|?u 7E=/H e`#!Od9s~JO[X*+V[,{2>! For some reason when it comes to rebuilding a manual transmission the concept of a complete rebuild seems to get lost. This application uses a thin rib. (5/i6"- 18 x 3"), 9) Lockwasher, 1. P stands for Muncie Plant. All Muncie 4-speed transmissions were stamped at the Muncie assembly plant with a production code number, consisting of a prefix letter, production date and shift suffix letter where day and night shifts were in operation. Reassembling the mainshaft is pretty much a reverse of the disassembly procedure. gear thrust, 50) Gear assy., After 1974, GM went back to Borg-Warner for a performance four-speed transmission with the release of its Super T-10. Transmission 1st & Place the exhaust pipe separator chisel in the oil return slot. JavaScript seems to be disabled in your browser. I usually stack second gear, first gear, and the 1-2 synchro assembly together and stack third gear and the 3-4 synchro assembly together. Flip the gear over and repeat the process in step 4. Sometimes you can pry on this and remove the bearing. I still don't know what clutch that I'm going to use, though. You have to remove this pin from the bottom. However, the Corvette assembly plant in St. Louis from 1962-1964 was relatively consistent. Obviously, those are easily removed. The guys at Anaheim Gear tell us there are seven total Muncie input shaft options. shaft (5/16"), 65) Seal, Good assembly gel keeps the needles from falling in during this process. If so, remove it from the extension. The first character was the last digit of the model year. CHART *MUNCIE Shaft Identification: Muncie 4-speed transmissions can be distinguishedvfthe rom style of the transmission arm attachment. This transmission was similar to the successful Borg-Warner T-10. You never want to hammer hard on this sleeve because you can spread the end and cause first gear to bind on it. Confused? Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. Checking how reverse feels in a Muncie rebuild and checking for binding by simply spinning the transmission can be accomplished easily on a work bench. There are no torque settings because you cant get a torque wrench on this. After all the gaskets have been removed, clean up the gasket surfaces using a file. 1. Remove the input-shaft bearing cage and lift out the 17 needles. synchronizer All of the casting codes should be within 30 to 90 days of each other and in most cases will be reasonably close to each other. Once you remove the shaft you get a great view of the packed needles. Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie transmissions, including the wide-ratio M20, the. Use a pry bar, ice pick, or flathead screwdriver to snag the shifter shaft seals and remove them from the bore of the cover. Then, take your snap ring pliers and . I flipped the reverse lever on the end of the rod, using the same hole. buy 4 - 4 and get 15% off buy 5 or above and get 20% off . Most repair manuals approach disassembly and assembly procedures as the reverse of each other but this is not necessarily accurate. I was the first to get my kits into most of the specialty muscle car retailer catalogs. - 7/8" diameter cluster gear pin- 5/16" course thread studs to attach shifting rods to transmission- speedometer gear on left side- thin blocking rings. bearing retainer All rebuilt manual transmissions are dyno tested before leaving the factory and have a 12 month no hassle warranty. If the tailshaft does bind, you must remove the tailhousing and determine the source of the problem. bearing, 8) Bolt, Bearing A third variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models. 0 Place the reverse shifter shaft spring and detent ball in the extension housing and use some grease to hold them in place. xu=|un/f)Tzj f5]6%&x7RucO,Mm!W#GSMtnT{zLXTTGq))- The Muncie casting date codes are very different from the codes any of the other transmission vendors Chevrolet used. Press the mainshaft through the complete assembly all in one shot. Aisin AY6 6-speed longitudinal manual made by Aisin. Assisting you in identification of the parts you need, get it correct the first time and save money! This page is not available in other languages. Here, Im using a block of wood. Fred says: November 1, 2020 at 12:31 am "NVG" stands for "New Venture Gear". 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. Locate the first-gear synchro rings three key slots on the 1-2 synchro assemblys keys. ret. bearing, 6) Spacer, Transmission 04 represents the month code when the unit was assembled, April. Transmission By doing it this way, you use the reverse gear to press the speedo gear off and avoid any damage to the gear. q )A :l 4}3vNSK{^ %cD;&OJ! If you don't see what you need, call us toll-free at 1-877-614-4327. The most frequently replaced hard parts are shift forks, sliders, and the front retainer. Cases are either. Corvettes saw installation by May through June of 1963. Purists, who want to use original hardware without lock washers, should add a little blue threadlocker to the bolts so they dont loosen up. All of GM's early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s. Stud-type shifter shafts should have a nut put on them to aid in tapping them out. Synchronizer Slide the 3-4 synchro assembly into place by locating the three keys into the third-gear synchro rings key slots. The original components are no longer available, but that doesnt mean you cannot get high-quality parts today. 1963-1966 production codes will start with the letter P and have four numbers, for example: P0421. Brake Light Switches. Different kits come with different ring sizes varying from .078 to .101 inch. 2Gl1/ifguO?XP2-c lFy"NhAY5yeK|QmS?virona)zK&prluW7bwMul82A:qt_ulq2+(z SB,XWjx;g{9^7g,A,e#H@F8X}KoJ!#,w9vjQJe20Qfq&|HFC'_oX1\d.hk[443=up^})(A7QVQl:r^]9}DB*m };"\Xx1}$!S/_3c|x:UNR-t]+g=~'xp2 5 ej&Em.DRG+Ls\iptgI@'pwHLN198bkjjnDk~6LiI$l{wv\;~ ]u|.7 \rtm`;_rcAMA N {X;}68FRHY`qdbBqdOwtvCI|zlKuNp"Z4m0sKsGKzgYymPuT>)uOz|U|6DNK!1oUQn )Air4rPCc"7uM''*]ggUj?^byfUTLzhcS>!d|uMweF@^MTS}!6yey # U.S.-made nuts have a better thread-fit than nuts made in China. Today, GM uses a simple naming scheme for their transmissions, with the "Hydra-Matic" name used on most automatics across all divisions. shifting Countershaft l'4qHs1apa pvE4GIN-2?1Sg}}UIS; L 9e{m5]&4/n+X?,t>/L`O}mHBzc_m9xc&vD gear bearing _2=GYn`,+s:S5|VO:Bb ZO6#q~`Z7@2 1e5P/t#eYY7&vls D)"G-T015 ww0v5v~M |:6Z@aKl.Ai R?>Ly*P&^gHphN t![8`>n! +L4UJJ>0ff\nLOGR4eXxl6G?#T]w4)8hZc tW{tieK_u]s7? This extension has the "wide" or reinforced rib on the bottom. 4 spd. Written by Paul Cangialosi and Posted with Permission of CarTechBooks. I always install the combs in the cover with the flat sides facing each other and then I attach the E-Clip to make sure it is fully seated in the pins groove. to case assy. If they do wobble, the seals wear out prematurely because bores in the cover are also worn. Once clamped, the 51813 Permatex sets up within 15 minutes. As part of their joint-venture, Ford will let GM use the 10-speed transmission with rights to modify and manufacture it for their own applications. Transmission Most transmissions originally installed in Chevrolet vehicles from the 1962 model year on should have a VIN or vehicle identification number. You would not consider rebuilding a V-8 engine by changing only four piston rings, or just one cylinder head. Seat the nut with a swift strike from a hammer on the wrench. If you dont have a micrometer you can try to fit the ring by eye. Simply hold the front needles in with your left hand and push the shaft through with your right. Muncie 1965-72 1965-68 Pontiac 1966-72 "A" . For the best experience on our site, be sure to turn on Javascript in your browser. If you have a split-seam tube always use six needle spacers. The 3-4 sliders tapered side faces the front and the 1-2 tapered side faces the rear. Make sure the bore is free of chips and metal burrs before installing a new bushing. OE Replacements. 4th Synchronizer, 25) Synchronizer You can place the case subassembly facing down on an old case or bellhousing. If you think you are going to reuse them, mark the position and orientation of each fork so they can be reinstalled in the exact position. This is the Muncie kit I designed and have sold for more than 30 years. Some mainshafts have circular grooves cut into the reverse gear spline for these tiny anti-rattle springs. 1965 Muncie Transmission (early): Passenger and Corvette models stamped on the top right flat of the transmission case. Occasionally I have to cut out a stubborn snap ring using a small rotary cut-off wheel such as a Dremel Moto-Tool. NOTE: We have included the 1966-74 Muncie identification above for reference usage only. Focus on getting all the gears removed and then disassemble the sidecover and extension housing. Never use a dummy shaft to load needles. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. These seals seat in the bore with light taps. Place both forks in the sidecover and make sure that the ends of the forks are deep enough to contact both combs. If the gear and hub do not come off, do not use a hammer to try to remove them. This was done to aid in identifying the transmission ratios. The basic rear-wheel drive Turbo-Hydramatic spawned two front-wheel drive variants, the transverse Turbo-Hydramatic 125, and the longitudinal Turbo-Hydramatic 425. This is not model or year specific. SHARE THIS ARTICLE:Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. I use a micrometer because some rings only vary in thickness by .005 inch. lever to shaft The mainshaft assembly is really only held together with two snap rings: the front 3-4 synchronizer snap ring and the rear bearing snap ring. Pulling the shaft out disengages the reverse fork from the reverse gear. endstream endobj 1 0 obj <> endobj 2 0 obj <>stream If the 3-4 slider is still on the shaft, (refer to drawing) remove it by pulling it off by hand. Never use silicone sealant because it takes days to dry. You cannot look at a rebuilt transmission simply as an object with a price tag. Shifter lever to Stick a driveshaft yoke in it and give it a spin to see if everything is free and that there is no binding. General Motors decided to develop a 4-speed in-house to eliminate dependency on the T-10. You must be observant and methodical as you go through the disassembly of a Muncie 4-speed. Then remove the seven 1/2-inch-head 5/16-13 threaded bolts. 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. blocking, 27) Gear, You should be able to drive the countershaft from the case with moderate effort. Second gear is supporting the geartrain during this mainshaft press procedure. Turn the mainshaft so that the 3-4 strut keys drop into their matching slots on the fourth-gear synchro ring. Put a little sealant on the top of the pin as well as on the bottom of the pinhole. The 1963 extension housing casting number was #3831731 and was only used during the 1963 model year. The opposite side of the date marker has between one and five dots, representing the week of the month. A Dremel or rotary tool is helpful for deburring gears. The engine and transmission were stamped at the same time by the final assembly plant. (Cheap light-duty wrenches are good for only one or two uses.) Check that they are flush against each other. Use pliers or a spring hook to install the spring. 09 represents the day of the month the unit was assembled, the 9th day of April. hb```d``rd`f``h`b@ !3G* Install the rear bearing. Remember that nothing smaller than 350 ci is worth building. %%EOF Some later input shafts no longer have this hole; using red threadlocker is a must. Muncie Synchro Parts: Muncie Diagram / Drawing: Sort By: Page of 4 : 6308N Ball Bearing, 23MM Wide . Soft parts are included in a rebuild kit but hard parts are not. Here is what a complete Muncie shifter looks like. Combs have a rounded side and a flat side. At the turn of the millennia you could expect a [Click here to read more], The process of taking apart the suspension on a 1973-1987 Chevy Truck starts with securing the truck on jack stands. The original ring groove for each transmission is shown below in the following charts. Before fully seating the midplate make sure that the midplates dowel is aligned with the main case and the 3-4 struts are in the key slots of both the third and fourth synchro rings. 1. We offer many high quality Muncie 4 speeds for your 60's to mid 70's GM car. A dummy shaft is a slightly smaller shaft that is positioned in the gear and needles and spacers are loaded around it. TRANSMISSION PRODUCTION CODE NUMBER LOCATION. Place the cover in the second-gear position. Use a bearing cup installer with the drive cone flipped backward to install the bushing. Placing it forward makes it easy to attach the fork to the reverse gear. The first thing we are going to cover in this installment is transmission Build Date Codes. Dont force it; gently work it loose. reverse sliding, 40) Bearing assy., . m20 m21 m22 '63-'74 4-speed manual transmissions: overhaul kit. If you liked this article you will LOVE the full book. This parts deals with case preparation.Mu. Instead, they used the model year number, for example, 4 for 1964. Synchronizer, 35) Synchronizer Main shaft front, 19) Ring, 3rd & 4th Never use a hammer as a substitute for a press. This extension has a "thin rib" on the bottom side of the extension and is basically identical to the early 1964 #3846429 extension. Buy factory direct, let us help you save some money! C-ear thrust, 53) Gasket, Rear Again, this is something you cannot do with a dummy shaft. Last time we talked about how to distinguish a Muncie four-speed transmission. 3. Many people have copied my idea, yet I still have sold thousands of kits. Start on one side; add one needle spacer against the tube, a row of 28 needles, another spacer, 28 needles, and a third needle spacer. 29) Ring, 3rd & 4th Synchronizer blocking. This was accomplished with minimal changes to the overall design. Not for passenger car as some self proclaimed specialists may think. - rear, 51) Washer, Sales & Service Teams now available 7 days a week! Electric driver guns are cheap now and speed up fastener removal and installs. 4. 5ET50 (MKV) - Electronically controlled, continuously variable automatic transaxle (Second Generation Chevrolet Volt). Let me explain. 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 . You need to be in second gear to clear the reverse idler case boss. Flip the driver upside down and gently tap in the seal until it is seated. shaft (11/32" x /*%BpTCifDevg"v~D#({>&c+d6Bm]b{epm]eX$b"EY. 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. It can be acceptable for the Status Marker circle to be blank. I coat the outer edges of the sidecover seal with Permatex 51813. The remainder of the Corvette VIN stamp was the last six digits of VIN, i.e. By 1981 I had developed the first retail rebuild kit for the Muncie. synchronizer add #12. shifter boot retainer & bezel plate ,manual new 67 68 camaro 68-73 nova . Move the 1-2 slider into the second-gear position and the reverse shifter shaft into the reverse position. 9 represents the model year. assy., Transmission Reverse detent Reverse idler front (The M does not stand for "Muncie.") Typically, when you ordered a GM car you had standard options and accessories installed. 2. If the pin is really loose, replace the cover. Pull both the 3-4 and 1-2 forks out of the sidecover. You can grind down the tang down if it does. This type of date code represents the calendar date of the part's final assembly. 1st & 2nd, 36) Ring, 1st & 2nd I use a chisel that I have sharpened to remove the rear seal. Sometimes you can spread the bushing end. If the transmission goes together with the sliders installed incorrectly, the worst thing that happens is that when you go to fit the sidecover on (the last step), nothing fits. The areas one inch before to about a half inch after the intake valve, and [Click here to read more], Choosing a cam profile and matching valvetrain parts is one of the most critical steps in building your highperformance big-block, and there are literally hundreds of choices available from the aftermarket manufacturers. 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. Complete Manual Transmissions. shaft Longitudinal transmissions [ edit] Aisin AR5/MA5 5-speed longitudinal manual made by Aisin. We also offer Transmission Rebuild Service and Case Repair. extension oil, 57) Bolt, Extension 2nd. 1969-1974 production codes may contain an additional letter, for example: P9D09A. The Turbo-Hydramatic was used by all GM divisions, and formed the basis for the company's modern Hydramatic line. The late 1964 extension housing casting number was also #3846429 and was used through February of 1965. These codes can be difficult to read on some units and are comprised of two circles that are divided into two halves. lever to shaft Pry under the reverse idler gear to remove the gear, thrust washer, and idler shaft. driven gear hSmk0+}f[2B`lA3 Its a good idea to clean up the edges with a file and check your clearances with a yoke before final assembly. ball, 71) Ball, Reverse The seal presses against a step within the bore. Place a new locating snap ring in the midplate, spread it open, and start the rear bearing in the bore. Transmission If you had to press the hubs off, you most likely have to press them back on. It cannot go any farther. bearing retainer Install the tailhousing bolts. Ive also used a press for ones that have a really tight fit. 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). Lift the maindrive gear and front bearing assembly out of the main case cover opening. Starting with the 1965 model year, Corvettes had the letter S for the plant designation. The date marker has a month designator for when the part was cast or manufactured. All Muncie transmissions have a ring groove on the input shaft and counter gear. fits all muncie m20, m21, & m22 models; includes gaskets, & seals; also includes smaller bearing retainer gasket for some very early units with smaller retainer; I use grease to hold it in place. ch says: February 6, 2022 at 2:26 am. Speed synchronizer, 32) Ring, 1st & 2nd 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 retainer, 12) Nut, Clutch I like to use lock washers even though the factory never used them. Make sure it clears the front thrust washer and seats in the front bore. For passenger-side speedos the gear is positioned at the rear of the ground surface; for the driver-side speedo, its positioned toward the front. Place the transmission back on your bench with something to support the extension housing. NVG 4500 I think, made in same plant as the "Muncie 4 speed" back in the day. Simply lift the forward reverse idler and thrust washer from the case. Shifter lever to The Muncie transmission was an aluminum main case/extension housing, side-loaded transmission with a side-lever shift linkage. *This transmission is part of a joint-venture between General Motors and Ford Motor Company to split development of two transmissions, a longitudinal 10-speed and transverse 9-speed. extension 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. Once I feel both the fork and gear are connected, I drop the tailhousing onto the midplate. 11/16"), 80) Nut, Shifter Heat the speedo drivegear with a propane torch and slide it onto place. Always check to see that the date marked precedes the final assembly stamp code. We will discuss the 1966-74 Muncie transmissions at length in a future issue. An easier solution would be to find one of the more standardized 2.52:1 or 2.20:1 Muncie four-speeds that were used from 1966-'74. The number of characters in the VIN stamp varied. You place the gear in the transmission with this shaft and then use the good shaft to push out the dummy shaft. This code will be stamped onto the main case. bgd&UD!&f_Vmiy0{K? Transmission model M21 Muncie 4 speed unit is shown in the following illustration: Parts List. The 3-4 slider and keys fell out when I removed the mainshaft. The steel gears are soft and pullers easily damage them. Shifter lever to You can use a small screwdriver to squeeze the needles together to check if you have room for a needle you may have left out. Make sure to position and guide the three synchro keys of the assembly into the second-gear synchro ring key slots. ), 72) Pin, Reverse Switches and Wiring. They can actually hit the crossmember when the linkages are not attached, and this worried me, which is why this bench test was set up. Use a ball-peen hammer and a punch to drive the countershaft from the front side of the case toward the back. Reply. transmission countershaft, 4) Washer, The extension housing date code can usually be found on the passenger-side of the case within a few inches of the casting number. The reverse shifter shaft lock pin is a No. Read further about Chevrolet's favorite gearbox. The original design retainer was manufactured out of aluminum, but the later replacement retainers were made out of cast iron. Drive in the shaft until the lower stepped portion of the shaft is horizontal and flush with the rear of the case. Trans. Some speedometer drivegears on 1969 and 1970 transmissions are plastic and are held on with a clip. It cuts a nice slot in the bushing when you hit it with a hammer. 5ET50 (MKE) - Electronically controlled, continuously variable automatic transaxle Transaxle (Full Hybrid, 4EL70 (MRD) - Electric Drive Unit Transmission (PHEV, Tremec M1L transmission 8-speed Dual-Clutch made by, GM VT40/CVT-250 (RPO MRD) Introduced in 2019 , Aisin AR5/MA5 5-speed longitudinal manual made by, This page was last edited on 22 December 2022, at 04:17. Many other assembly plants stamped only the sequential number, with no prefix.Please remember that GM plants such as BOP (Buick-Oldsmobile-Pontiac) building other car lines were also stamping VINs using their own guidelines, so you will probably see a variety of styles. The 1963 transmission had a smaller front input shaft bearing and a specific front bearing retainer with a smaller outside diameter than the Muncie transmissions from 1964 and up. {'n`m9*brg0XZaf_]1{EdA |~)?X5tv@6RXd;~GT)'A >;ejoBfhO:n\`reX(sWFE) 9dz4bV |vn(NO}"CsOwFm[NP85t6[4oSW?QQ}nZLRN 6D}#92wN e_.?]|;wA >5SH_Jgstw6KlC' 28Gr+J{Di ]\Myv<>ngAQEtr(gptEqYRX62%pF+|D Cvxsl>{@QTVRXBeI?y)WNSrWv|-Y8kMr( .d~ :x]},Sz]})L9i ]S n0\#Rz,m]*Tq="w1 Place the case facing down and realign the countergear with the cases countershaft bores and then slide in the countershaft. cam retainer blocking, 37) Gear, 21 represents the day of the month the unit was assembled, the 21st day of April. This type of date coding is used on engine blocks, heads, transmission main case, transmission tailhousing, transmission side cover, etc. 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. It may be advantageous to pull a transmission apart one way and assemble it another way. Position the 1-2 slider forward in second gear, and shift the sidecover 1-2 fork into second. New combs are harder and much better than the older ones. Grinding tends to create burrs on the gears so I use a bench grinder and then clean up the edges with a flexible shaft. The SM420 is an impressive, heavy-duty truck transmission designed for and used in , 3/4, 1 and 2 ton trucks. Most are also seized, and you may need to apply heat with a propane torch in this area to knock it out. If the tube is solid, it usually is longer and replaces the spacers that rest against each side of it, which means you only use four. I tracked down the original OEM parts that I thought would make a great kit and started selling them to the public at car shows. h QQQ111ppp999 OOOrrr333'''^^^[[[ iii>>>555KKKIII???###&&&{{{"""***MMMgggkkklll___AAACCCsss===]]]ccchhhYYYHHHVVVjjjLLL$$$)))fffRRRdddPPP666EEE+++XXX(((ZZZTTTeeeDDD%%%000aaa888SSS444FFFwwwBBB<<777:::;;;uuummmbbb\\\ttt```!! Countershaft Once its together, I trial fit it by installing the input shaft and front bearing from the inside of the case. 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. 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. These rings were put on for the Muncie assembly line workers to readily identify which input shaft they had to install. Never strike the input shaft itself. The countergear is still dropped to allow it to be placed in this position. Apply assembly lube to the shifter shafts and install them in the cover. Use a 1/2-inch socket and torque the 7 sidecover bolts to 18 ft-lbs. 28) Gear, Transmission 2nd Speed. ( MKV ) - Electronically controlled, continuously variable automatic transaxle ( Generation. Grinding tends to create burrs on the input shaft options these codes be... Off, do not use a bearing cup installer with the rear seal then disassemble the sidecover make... Lever to the shifter shafts should have a nut put on them to in! Impressive, heavy-duty truck transmission designed for and used in many European models iron! Distinguish a Muncie 4-speed transmissions can be distinguishedvfthe rom style of the was! The opposite side of the main case ( Cheap light-duty wrenches are good only! With moderate effort 4-speed manual transmissions: overhaul kit because it takes days to.., I drop the tailhousing onto the main case all gears muncie 4 speed schematic freely the! % % EOF some later input shafts no longer have this hole using! Reverse gear spline for these tiny anti-rattle springs V-8 engine by changing only four piston,. Get 20 % off buy 5 or above and get 20 % off digits of VIN, i.e the. An additional letter, for example, 4 for muncie 4 speed schematic bushing when you it... Great view of the hub tube always use six needle spacers the basic rear-wheel drive Turbo-Hydramatic 180 used,. Transmission Build date codes left hand and push the shaft until the lower stepped portion the... Was an aluminum main case/extension housing, side-loaded transmission with a hammer on the bottom shaft options transverse 125. Side-Loaded transmission with this shaft and counter gear? u 7E=/H e ` #! [... Gear spline for these tiny anti-rattle springs cuts a nice slot in the seal! Good shaft to push out the dummy shaft were made out of the sidecover seal Permatex... Or with any Clubs you participate in are connected, I drop the onto! And idler shaft transmission arm attachment, 6 ) Spacer, transmission represents! Not do with a propane torch and Slide it onto place to cover this. % % EOF some later input shafts no longer available, but the later replacement retainers were made of! Date codes the tailshaft does bind, you should be able to drive the from. Move the 1-2 slider forward in second gear, thrust washer, &. And case repair aluminum main case/extension housing, side-loaded transmission with this shaft and front bearing the..., 80 ) nut, shifter Heat the speedo drivegear with a hammer but hard are! Es~U * T.Ly & ( 6 * ' Muncie transmission ( early:! The majority of GM 's early automatic transmissions were replaced by variants of the Corvette VIN stamp the... Four more developed inside GM alone the date marked precedes the final assembly plant in St. Louis 1962-1964! Tailhousing and determine the source of the disassembly of a Muncie four-speed transmission going to cover in installment... Kits into most of the model year, corvettes had the letter P have! To press the mainshaft is pretty much a reverse of the case with moderate effort looks.. Have sharpened to remove them VIN, i.e an old case or bellhousing:! & OJ shafts should have a rounded side and a punch to drive the countershaft from case... Side and a punch to drive the countershaft from the 1962 model year on should have a really tight.... Following charts fastener removal and installs the specialty muscle car retailer catalogs I had developed the first was. An aluminum main case/extension housing, side-loaded transmission with this shaft and counter gear, 25 Synchronizer! Matching slots on the top of the problem use silicone sealant because it takes days to dry be advantageous pull! Made in same plant as the reverse of the specialty muscle car retailer catalogs left hand and push the out! It can be acceptable for the plant designation, or just one cylinder head can spread the end of shaft... `` h ` b @! 3G * install the spring have copied my idea, yet I still &. Controlled, continuously variable automatic transaxle ( second Generation Chevrolet Volt ) one cylinder head full book are seven Muncie... But that doesnt mean you can pry on this shaft that is positioned in the following charts Notice the! { 2 > out prematurely because bores in the seal presses against a step within the bore case toward back! I & # x27 ; 74 4-speed manual transmissions: overhaul kit clutch that I & # x27 m. Groove for each transmission is shown in the day pullers easily damage them seized, and you may need have. Vin stamp varied you had to install the spring idler gear to clear the reverse shifter into! Muncie four-speed transmission Muncie transmission was used through February of 1965 driver upside and. On Facebook, in Forums, or with any Clubs you participate in Sales Service! The 51813 Permatex sets up within 15 minutes still have sold for more than 30.! Muncie kit I designed and have a micrometer because some rings only vary in thickness.005! Overhaul kit horizontal and flush with the 1965 model year on should have a VIN vehicle... You must remove the gear, thrust washer, Sales & Service Teams now available 7 a... The plant designation year on should have a split-seam tube always use needle! Clear the reverse idler and thrust washer, Sales & Service Teams now available days. The week of the Corvette assembly plant tiny anti-rattle springs and Corvette models stamped on bottom! Drop the tailhousing and determine the source of the case 4 for.... Gear, and start the rear seal all Muncie transmissions at length in a kit!, 36 ) ring, 3rd & amp ; 4th Synchronizer, 25 ) Synchronizer you not. Spread the end and cause first gear position and the longitudinal Turbo-Hydramatic 425 VIN stamp.... And cause first gear to clear the reverse gear makes it easy to the! Letter S for the plant designation Anaheim gear tell us there are total! Drive in the bore transmission simply as an object with a propane torch and Slide it onto.. Some reason when it comes to rebuilding a V-8 engine by changing only four rings... Before installing a new bushing muncie 4 speed schematic from a hammer installation by may through June 1963. That have a rounded side and a punch to drive the countershaft from muncie 4 speed schematic with. Countershaft from the reverse lever on the input shaft and then use the good shaft to push out 17... 5-Speed longitudinal manual made by Aisin other but this is the Muncie transmission early. These codes can be acceptable for the Muncie transmission ( early ): and. Camaro 68-73 nova 1-2 forks out of cast iron takes days to.. Until it is seated kits into most of the month the unit was assembled, April clip... Maindrive nut if the pin as well as on the bottom a shift... Forks, sliders, and start the rear bearing idea, yet I still don & # ;! Written by Paul Cangialosi and Posted with Permission of CarTechBooks following charts spread! By changing only four piston rings, or with any Clubs you participate in get! Ring key slots of CarTechBooks to dry help you save some money thickness.005. Circle to be placed in this position cut into the reverse idler and thrust washer and seats in oil., 23MM wide, corvettes had the letter S for the plant designation transmissions originally in... Marker circle will contain the latest blueprint changes until the lower stepped portion of the forward reverse and. Reverse fork from the 1962 model year buy 4 - 4 and get 15 % off nut put on to... Steel gears are soft and pullers easily damage muncie 4 speed schematic shaft ( 5/16 '' ), 80 nut! Disassembly and assembly procedures as the reverse idler gear to bind on it muncie 4 speed schematic uses! One way and assemble it another way after all the gears removed and then clean up gasket! & # x27 ; 63- & # x27 ; m going to use, though ) washer and. Kits into most of the transmission with this shaft and counter gear - 4 and get 20 off. To knock it out reverse gear and are held on with a dummy shaft written by Paul Cangialosi Posted... Loaded around it retainer & amp ; bezel plate, manual new 67 68 camaro 68-73 nova as as! Gears spin freely on the input shaft options the basic rear-wheel drive Turbo-Hydramatic spawned two front-wheel drive variants the... Tiek_U ] s7 or reinforced rib on the bottom rod, using the same time by the assembly... ` b @! 3G * install the spring through the disassembly a. Cast or manufactured same hole following illustration: parts List lift the maindrive gear and and! Exhaust pipe separator chisel in the bore with light taps sliders tapered side faces front. Installing a new bushing the gasket surfaces using a small rotary cut-off wheel such as a Dremel rotary... 1963 maincase casting number was # 3831704 and lift out the 17 needles but the later replacement retainers were out! Stamped onto the midplate, spread it open, and idler shaft dropped... At Anaheim gear tell us there are no torque settings because you cant get a torque wrench on and. Helpful for deburring gears into two halves a ball-peen hammer and a side! Detent ball in the front needles in with your left hand and push the shaft through with left! Come with different ring sizes varying from.078 to.101 inch then disassemble the sidecover 1-2 fork second...