muncie 4 speed schematic

muncie 4 speed schematic2020/09/28

Serial numbers for Muncie 4 speeds always begin with the letter "P". shaft rear bearing In many ways, the camshaft is the command center of the engine. It may be advantageous to pull a transmission apart one way and assemble it another way. 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.". The SM420 is an impressive, heavy-duty truck transmission designed for and used in , 3/4, 1 and 2 ton trucks. Once I feel both the fork and gear are connected, I drop the tailhousing onto the midplate. 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. %%EOF TRANSMISSION PRODUCTION CODE NUMBER LOCATION. Before final assembly of the mainshaft the synchro assemblies should be matched and assembled. ), 10) Retainer, The factory never used lock washers and they are often seized and break. part #342861 $239.00. The midplate is preassembled with the rear bearing. synchronizer If you dont have a micrometer you can try to fit the ring by eye. I have developed these during my 30-plus years in this line of work. Place the cover in the second-gear position. It has front and rear main bearings, gaskets, seals, synchro rings, rear bushing, countershaft, lock plates, and small parts. You are welcome to download and print this illustration. For a complete restoration I might have had to source out original hardware. 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. blocking, 37) Gear, 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. *1sQawB5BNxenlVyM0*3R ,&#]Djmyp The following six digits were the last six digits of the VIN. I typically replace the forks because most are worn, and they are just too old. This is important information when trying to determine if a part fits the build date of a vehicle and the final Build Date Code of the component. The Muncie has probably been the most popular transmission among the hot rodding set since its inception in 1963. U.S.-made nuts have a better thread-fit than nuts made in China. Pre '69 Muncie's use a stud & nut at the indicated attachement point, while '69 and later Muncie's use a bolt as All of GM's early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s. & We want to clarify all information on the Muncie in the years 1963-65, which was the early production run of the Muncie. It can be acceptable for the Status Marker circle to be blank. The date marker has a month designator for when the part was cast or manufactured. If the shaft falls out too easily, the case holes have been elongated and need to be repaired. This type of date code represents the calendar date of the part's final assembly. The SM465 was made by General Motors from 1968 to 1991. Many Muncie 4-speed main cases, extension housings, and side covers have a casting date code. Countershaft shifter Locate the first-gear synchro rings three key slots on the 1-2 synchro assemblys keys. What could [Click here to read more], Congratulations! Within 10 minutes the pin is locked and sealed in place. This means that you should also replace the cover. I use an assembly lube specifically for transmissions. Simply attach it to one comb and pull the other end into the opposite comb with the pliers. If you have a split-seam tube always use six needle spacers. All rebuilt manual transmissions are dyno tested before leaving the factory and have a 12 month no hassle warranty. Speedometer 2. Try to pull the gasket out. the car's sequential assembly number. C-ear thrust, 53) Gasket, Rear There is another way to quickly identify Muncie transmissions. Reply. Longitudinal transmissions [ edit] Aisin AR5/MA5 5-speed longitudinal manual made by Aisin. The Muncie was used in all high performance applications until the Borg-Warner Second Design Super T-10 began replacing it in 1974. Confused? Remove the side cover and forks for a look at the geartrain. It cannot go any farther. Its a good idea to shock them first by hitting the heads with a punch and hammer. 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings . This was accomplished with minimal changes to the overall design. Occasionally I have to cut out a stubborn snap ring using a small rotary cut-off wheel such as a Dremel Moto-Tool. The shifter mounting plate and transmission mount bolt holes usually have stripped threads or seized bolts. Quality parts guaranteed! It remains tacky even when the air temperature is high. Once clamped, the 51813 Permatex sets up within 15 minutes. Extension housing castings are prone to cracks around the reverse shifter shaft boss. The sealant on the cover gaskets also acts as a threadlocker. Grease the rear seal and coat the outside of the seal with Permatex 51813. - rear, 54) Extension 1st & 2nd, 36) Ring, 1st & 2nd Some first-gear bushings drop down easily and you may need a little threadlocker on the sleeve to prevent it from spinning on the shaft. Remove the input-shaft bearing cage and lift out the 17 needles. retainer snap, 43) Gear, driven gear I flipped the reverse lever on the end of the rod, using the same hole. There are few visual resources out there for the original Muncie shifters that came stock on 4 speed Chevelles. Most passenger car plants stamped the VIN on the top, while other plants stamped it on the side, near the assembly date code. It is the Home of the Super Muncie. Once you remove the shaft you get a great view of the packed needles. Pry near the dowel to remove the cover. 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. Remove both shift levers and mark them so they can be replaced in the same bores. In this case, youre loading 112 needle bearings. Notice the new fill and drain plugs on the main case. blocking, 27) Gear, synch. _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? 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. 3. {'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 I use grease to hold it in place. cF The 1963 extension housing casting number was #3831731 and was only used during the 1963 model year. Simply hold the front needles in with your left hand and push the shaft through with your right. (I never have leaks.) ball, 71) Ball, Reverse Sometimes you can spread the bushing end. Reassembling the mainshaft is pretty much a reverse of the disassembly procedure. You would not consider rebuilding a V-8 engine by changing only four piston rings, or just one cylinder head. Place the front thrust washers tang into its locating slot in the front of the case. I do it this way because other techniques call for you to hammer on the bearing after the input is installed and that can damage the fourth-gear ring. If you have to press it on, support the bearing by the inner race and press the input shaft into it. shifter shaft Aisin AY6 6-speed longitudinal manual made by Aisin. I coat the outer edges of the sidecover seal with Permatex 51813. TRANSMISSION CODE NUMBER IDENTIFICATIONTRANSMISSION CODE NUMBER IDENTIFICATION. Sometimes you do find a transmission with original gears that are in great shape. Transmission Catch the edge of the seal with the chisel and punch it out. Multiple ratios, Heavy Duty case, center plate and tail. The original ring groove for each transmission is shown below in the following charts. Typical Muncie 4-speed, passenger side The Muncie transmission was an aluminum main case/extension housing, side-loaded transmission with a side-lever shift linkage. You can place the case subassembly facing down on an old case or bellhousing. Shifter lever to Flip the assembly over and (starting from the same key) position the spring exactly as before. 33),WrPc J+lv&*iYk^5lmi)VA.f/|g% Countershaft This application uses a wide rib. 1969-1974 production codes may contain an additional letter, for example: P9D09A. Its always good to inspect all of the cover components because the function of the cover dictates how well the transmission shifts. Sometimes the shaft may be stuck in the extension housing. detent (3/8" Dia. At this point, the geartrain is completely apart. If you can, install the thicker one. Make sure the seal is square in the bore and that you drive it in evenly. This extension has a "thin rib" on the bottom side of the extension and is basically identical to the early 1964 #3846429 extension. It can never be taken for granted that the installation of new parts guarantees a fully functional and problem-free unit. HlVr7. Use a 1/2-inch socket and torque the 7 sidecover bolts to 18 ft-lbs. Huge variations exist in the quality of replacement parts and the skills of rebuilders. Last time we talked about how to distinguish a Muncie four-speed transmission. Save your vehicles, create project lists, and track your orders. muncie 4 speed shifter & linkage, 67-68 camaro 68-72 nova 67 fb. Of the regular production codes, one particular Muncie 4-speed type appears. endstream endobj 150 0 obj <>stream (Cheap light-duty wrenches are good for only one or two uses.) I spend most of my time building new transmissions with all-new parts. You place the gear in the transmission with this shaft and then use the good shaft to push out the dummy shaft. shaft (5/16"), 65) Seal, ** The #3846429 extension was manufactured in two versions, a "thin rib" and a "wide rib". You cannot look at a rebuilt transmission simply as an object with a price tag. You will disassemble it later. That is both good and [Click here to read more], An intake manifold is about as simple as it gets, right? Place third gear and its synchro ring on the mainshaft. Push the retainer onto the bearing and try to pinch the gasket between it and the case. These rings were put on for the Muncie assembly line workers to readily identify which input shaft they had to install. Use a soft iron hammer on the pin to knock the input shaft through the bearing. 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. If you plan to reuse them, you should remove the gear over a tray so you avoid losing any needle bearings. To set up synchronizers, start by placing one key in first and then the other two keys as you wrap the spring around them. The 1963 maincase casting number was #3831704. 1963-1966 production codes will start with the letter P and have four numbers, for example: P0421. This practice did not start until the first M22 transmissions were built in 1965. It is advantageous to have access to a hydraulic press before disassembling a mainshaft. Install the midplate-to-tailhousing gasket. Transmission I still don't know what clutch that I'm going to use, though. illustrated parts break down illustrates individual part placement in the assembly. If we can put together enough odd codes maybe we can publish a few in the future. . Install the second-speed gear with the synchro ring and the 1-2 synchro assembly. The only special tool you need is a Muncie front-nut wrench (the red one here). used), 33) Spring, 1st & bearing retainer If they are really bad you should change them out. 30) Spring, 1st & 2nd Synchronizer . The easiest way to discern the proper date mark circle is to look for the week designator dots. This is an easy repair because failure of the retainer is not caused by something internal. A third variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models. Turn the mainshaft so that the 3-4 strut keys drop into their matching slots on the fourth-gear synchro ring. The sidecover alignment dowel is located below the upper right bolt. 29) Ring, 3rd & 4th Synchronizer blocking. It was based on the T10 design, and I have been told that BorgWarner engineers helped design it. % "v5FiSz:ByFR:HyP^dw?e S( oJ`^b~_ ! 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. Muncie 4 Speed Transmissions and Parts We carry a large selection of Muncie 4 Speed Transmission Parts, Complete Muncie Transmission Units, and Cases. gaskets & seals . Check that they are flush against each other. This one tapped gently into place. Heat the speedo drivegear with a propane torch and slide it onto place. The Muncie transmission was an aluminum main case/extension housing, side-loaded transmission with a side-lever shift linkage. Pre-1969 Muncies use a stud and nut at the indicated attachment point, while 1969 and later Muncies use a bolt as illustrated on the right. The original components are no longer available, but that doesnt mean you cannot get high-quality parts today. Use a 7/16-inch socket and torque the bolt and lock washer to 10 ft-lbs. (11/32"x 11/16"), 69) Pin, Reverse Once I fully chamfer and deburr the gear, I install the forward reverse-idler thrust washer and hold it in place with grease. The late 1964 extension housing casting number was also #3846429 and was used through February of 1965. This type of date coding is used on engine blocks, heads, transmission main case, transmission tailhousing, transmission side cover, etc. blocking, 30) Spring, 1st & I use a micrometer because some rings only vary in thickness by .005 inch. Using snap-ring pliers, install the 3-4 synchro locating snap ring in the mainshafts snap-ring groove. Military specification versions were made through the early 1980s. 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. A solid slinger is on the shaft (left) and Im holding a tanged slinger (right). (Part of #54), 56) Seal assy., If so, remove it from the extension. [1] This list includes some GM transmissions. 1963 & 1964 Muncie Transmission: Passenger and Corvette models stamped on the left side of case rear of side cover. With this method, place the bearing and shaft back into the case and install the outer snap ring on the bearing. Position the 3-4 slider forward (about halfway) on the hub but not far enough to displace the strut keys. Another way to confirm that the transmission is original to your car is most Muncie four-speed transmissions will have a Vehicle Identification Number (VIN) number stamped on the main case. The extension housing date code can usually be found on the passenger-side of the case within a few inches of the casting number. This Muncie has 27 splines and is side loaded has an aluminum transmission case, extension housing and 7 bolt side cover. The letter M was used to ID the Muncie plant for the Muncie 3 speed, so P was the next logical letter. 0 tapered pin that is wider at the top than at the bottom. This application uses a thin rib. 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. - 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. Posted in Corvette, C1 1953-62, Technical, C2 1963-67, Technical, C3 1968-82 and Technical. Muncie Transmission Identification. m20 m21 m22 '63-'74 4-speed manual transmissions: overhaul kit. The next step is to drop in the reverse idler. If you had to press the hubs off, you most likely have to press them back on. Combs have a rounded side and a flat side. Once engaged in the input, push the 3-4 slider back into its neutral position. To start the mainshaft disassembly, use snap-ring pliers to remove the 3-4 synchronizer snap ring. You need to be in second gear to clear the reverse idler case boss. The orientation of these parts is critical. Transmission model M21 Muncie 4 speed unit is shown in the following illustration: Parts List. My Dad Taught Me Everything About Classic Cars, Classic Mustang Wheel and Tire Combinations Part 2, Classic Mustang Wheel and Tire Combinations Part 1, Interior Upgrades for your Classic Mustang. I use a special heavy-duty wrench for this. Usually the gear and 3-4 synchro hub dislodge if you hold third gear and gently tap on the front of the mainshaft. 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. retainer to case shaft (11/32" x The original design retainer was manufactured out of aluminum, but the later replacement retainers were made out of cast iron. P represents the manufacturing plant, Muncie. The number of needle bearings and spacers used on the countershaft can be intimidating. Stud-type shifter shafts should have a nut put on them to aid in tapping them out. The store will not work correctly in the case when cookies are disabled. case (5/16"int. You will disassemble it later. You need to use a press and bearing clamp on third gear for removal. Many people become so focused on price comparisons when purchasing a rebuilt Muncie that they frequently overlook what was actually done to the transmission and, more important, who did the work. Reverse idler The key difference between. Below find aparts illustration for the Muncie M21 4 speed manual transmissionused 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 Corvette and Nova. Spare driveshaft yokes are useful for checking the bushings and mainshaft splines. Some later input shafts no longer have this hole; using red threadlocker is a must. Last edited on 22 December 2022, at 04:17, "Hydra-Matic History: The First Automatic Transmission", "Exclusive: An Inside Look At Ford's New 10 Speed Transmission", "Ford and GM finally consummate 9- and 10-speed joint development", "Ford passes on GM's 9-speed automatic transmission", "GM Hydra-Matic 9T50 Transmission Confirmed for Chevrolet Cruze, Malibu, Equinox", https://en.wikipedia.org/w/index.php?title=List_of_GM_transmissions&oldid=1128819580. The Turbo-Hydramatic was used by all GM divisions, and formed the basis for the company's modern Hydramatic line. A dummy shaft is a slightly smaller shaft that is positioned in the gear and needles and spacers are loaded around it. driven, 59) Sleeve, Hb```"%"A1e W)1m[+*$0M!Q Pkn$SIVbv%y\ex-Df5scm[6a]BL^A^ Td(()QR d`.W }d8 YST9{6LZ> PVW endstream endobj 70 0 obj 225 endobj 53 0 obj << /Type /Page /Parent 48 0 R /Resources 54 0 R /Contents 59 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 54 0 obj << /ProcSet [ /PDF /Text ] /Font << /F3 56 0 R /F4 61 0 R /F5 63 0 R >> /ExtGState << /GS1 67 0 R >> /ColorSpace << /Cs5 57 0 R /Cs9 58 0 R >> >> endobj 55 0 obj << /Type /FontDescriptor /Ascent 807 /CapHeight 754 /Descent -249 /Flags 262176 /FontBBox [ -140 -261 1195 990 ] /FontName /CCKOCC+Futura-CondensedBold /ItalicAngle 0 /StemV 141 /XHeight 505 /CharSet (/C/three/R/F/D/comma/four/quotedblleft/E/S/G/hyphen/ampersand/quotedblri\ ght/K/U/I/A/six/space/V/seven/parenleft/L/H/M/parenright/one/nine/P/N/O/\ B/T/colon) /FontFile3 65 0 R >> endobj 56 0 obj << /Type /Font /Subtype /Type1 /FirstChar 32 /LastChar 240 /Widths [ 245 246 360 490 490 858 590 250 300 300 376 490 245 318 245 547 490 490 490 490 490 490 490 490 490 490 245 245 490 490 490 454 833 528 479 452 530 392 394 563 555 255 352 513 373 722 573 582 487 582 530 440 414 544 565 793 545 514 508 320 250 320 490 500 300 433 433 315 433 414 299 437 424 209 209 440 210 639 424 436 433 433 315 376 308 423 452 694 489 452 401 300 250 300 490 245 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 490 490 0 0 0 0 0 830 0 0 0 245 0 0 245 490 245 245 0 423 245 245 245 245 245 0 0 245 0 0 0 0 0 245 0 245 245 0 0 0 245 0 0 0 0 0 0 0 491 491 0 0 0 245 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 245 ] /Encoding /MacRomanEncoding /BaseFont /CCKOCC+Futura-CondensedBold /FontDescriptor 55 0 R >> endobj 57 0 obj [ /CalRGB << /WhitePoint [ 0.9505 1 1.089 ] /Gamma [ 2.22221 2.22221 2.22221 ] /Matrix [ 0.4124 0.2126 0.0193 0.3576 0.71519 0.1192 0.1805 0.0722 0.9505 ] >> ] endobj 58 0 obj [ /Separation /All 57 0 R 68 0 R ] endobj 59 0 obj << /Length 1173 /Filter /FlateDecode >> stream The number of characters in the VIN stamp varied. 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. Transmission QQtx:ES~U*T.Ly&(6*'? 7s 1956-1964 4 speed Controlled coupling HydraMatic, also known as Cadillac 315 or P 315 HydraMatic, Oldsmobile Jetaway, Pontiac Super HydraMatic. synchronizer Not for passenger car as some self proclaimed specialists may think. Synchronizer, 35) Synchronizer The first character was the last digit of the model year. The most frequently replaced hard parts are shift forks, sliders, and the front retainer. It replaced the T10 in General Motors' cars, starting in February of 1963. 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. Check for any nicks and deburr all rough edges. bearing, 11) Gasket, Clutch 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. No 1963 or 1964 maincase should have a drain plug in the case. If you cant, use that gasket. Often this circle is blank. 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. The extension housing code is usually within a few inches of the casting number, also on the passenger side. The 1965 Muncie was identical to the 1964 version. l'4qHs1apa pvE4GIN-2?1Sg}}UIS; L 9e{m5]&4/n+X?,t>/L`O}mHBzc_m9xc&vD 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. You must be observant and methodical as you go through the disassembly of a Muncie 4-speed. In this diagram from the service manual, heavy bearing grease is used to retain 17 new roller bearings and a retaining cage into the main drive gear cavity before installing the unit . 3. First and second gear, the 1-2 synchro assembly, first-gear sleeve, reverse gear, speedometer gear, and the rear bearing midplate slide off the shaft together. Place the transmission back on your bench with something to support the extension housing. One circle is called the date marker, the other the status marker. If you are going to change a 45-year-old front bearing it is in your best interest to change all the bearings. 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. If you have to pull it apart again, it is one less step to perform. We will discuss the 1966-74 Muncie transmissions at length in a future issue. New nuts are cheap. Be sure to pay attention to the position of the countershaft. TempestTorque, ( Pontiac) a two speed based on Powerglide, but having the added feature of " Split Torque " dividing the engine power between mechanical connection and the torque converter in high gear. 21 represents the day of the month the unit was assembled, the 21st day of April. %PDF-1.2 % Install the input shaft assembly from the inside of the case. retainer, 13) Ring, Clutch 40312 County 8 Blvd, Zumbrota, MN 559928 am - 5 pm CST507-824-2012, Toll Free Phone: 1-888-824-2012info@midwesttrans.com, 11071 93rd Ave N Maple Grove, MN 553698 am - 5 pm CST763-425-7474Toll Free Phone: 1-800-444-0755info@midwesttrans.com, Contact Us | FAQ | Warranty | Privacy Policy | Terms & Conditions, Automotive Repair Shop Website Design by One Wheel Marketing. (The M does not stand for "Muncie.") Typically, when you ordered a GM car you had standard options and accessories installed. It cuts a nice slot in the bushing when you hit it with a hammer. Fred says: November 1, 2020 at 12:31 am "NVG" stands for "New Venture Gear". The first documented Corvettes with the Muncie transmission appear in the May-June time frame. In the past, you could purchase replacement parts only from General Motors and a few aftermarket sources. The problem was solved. shaft 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. buy 4 - 4 and get 15% off buy 5 or above and get 20% off . Viola! ! If you don't see what you need, call us toll-free at 1-877-614-4327. You need to have the transmission locked in two gears so you can install the new maindrive nut. The remainder of the Corvette VIN stamp was the last six digits of VIN, i.e. Sometimes you can pry on this and remove the bearing. 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. If you liked this article you will LOVE the full book. Copyright 2022 Ecklers Automotive. Grease does two things: It keeps the seal lubricated and it also keeps the seals tension spring from popping out when you drive the seal in. There are no torque settings because you cant get a torque wrench on this. In the last decade, significant strides have been made in the ability of high tech oils to combat wear. Light tapping should drive the bearing out of the bore. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. MUNCIE M-20/M-21 EARLY, G.M. \;1"89ek5YAwG Rv($|)d Its much easier to place the reverse shifter shaft seal in the tailhousing after the shaft is in place. Muncies are rarely tight enough to need a press. Seal removal tools are available and worth having if you build a lot of transmissions. Support the input shaft so that it is facing downward and drop the new caged bearing assembly into it by lining up its cardboard sleeve to the bore and pushing it through. Reverse shifter endstream endobj 147 0 obj <> endobj 148 0 obj <> endobj 149 0 obj <>stream MUNCIE 4 SPEED ALUMINUM TRANSMISSION COMPONENT CASTING NUMBER CHART. 1. Dont force it; gently work it loose. High Performance Forged Synchronizer Rings made by Synchroking! Your #1 Source of Restoration and Restomod Parts! Main shaft rear, 42) Ring, Main Install the rear bearing. Most front nuts are seized onto the shaft. assy., Transmission Because youre taking apart the entire suspension, it makes sense to do this at a place where the truck can sit for a minimum of a [Click here to read more], Selecting a camshaft is one of the most important decisions youll face when building a high-performance small-block for street or bracket racing.

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