gm manual transmission casting number decoder
Example: 19N500001. Aluminum case, extension housing and side cover. Look for casting identification on the transmission casing. Reverse gears are straight cut and are located in the main transmission case. Main case casting numbers (when looking at the passenger side these numbers are upside down) 6273262, tail shaft housing casting numbers 3968035, Shifter cover casting numbers GM1 3952646. track of what was what, it's best to ID your gearbox visually, taking what is stamped on the The Saginaw reverse shift lever is on the cover, and the cover has 7 bolts. Has case casting number T16-1X. Keith Hardy (The Old Car Manual Project) kindly hosts GM engine serial number prefixes and suffixes. the angle of the gear teeth. The manual had truck stuff in it but it was clearly biased towards cars. The cluster gear is solid and is supported on each end by cylindrical roller bearings located in the case. Side Cover Casting Numbers. An example of the serial number is "P4D23B." P represents the manufacturing plant, … What rear end ratio do I have in my Ford is it posi! 691747 OR 591747. The replacement case (GM PN 3925659) was used for all 1966– 1974 Muncies as listed in the GM AC DELCO 1978 service parts manual. The front and rear countershaft bearings are both 25x62x17. The 1964 maincase casting number was #3851325 and was used through the 1965 model year as well. Tech Line: ... forums and buy an assembly manual if one is available for your Project Car (you wont be sorry). The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963 through 1974. A metal tag can be found on the driver's side of the case and is held down by one of the tailhousing bolts. be noiser (whines or howls almost like a blower, which is why it's called a "rock crusher") You’ll find the casting numbers on the main transmission case just after the tail shaft housing. Pre ‘69 Muncie’s use a stud & nut at the indicated attachement point, while ‘69 and later Muncie’s use a bolt as illustrated on the right. The cluster gear is supported on both ends by cylindrical roller bearings. After locating correct unit a link is supplied to provide detailed information on specific kit and parts that are available for your unit. The number on the front cluster gear is DK55836. The Borg Warner has a 9 bolt cover. An example of the serial number is "P4D23B." T5 Transmission Identification - What the Tags and Markings Mean. Units from 1940-54 have enclosed driveline, otherwise known as a "torque tube". 14010203 Small Block V8 1980-1985 305, 2 bolt. Saginaw has one type of four-speed manual transmission, making the identification quicker after figuring out the make. Toyota What "L" and "W" Series Transmission do I have? The only gears that are removable from the countershaft are 3rd and 4th. Quick Decoding. This is found only is GM diesel applications and has a different starter position than the unit that goes into the Isuzu vehicles. If you find 3 letters, the transmission is made between 1986-1993.. This number will contain division ID #, model year, assembly plant and production sequence (last 6 digits) of the VIN stamped onto the transmission. A muncie and it's bellhousing are the same length as either a powerglide or a T350, and will directly bolt in. This # doesn't match up to any #'s in my guides. By the mid 1990's most of the GM T5 installations were all World Class. Further Muncie identification Reverse shift lever is located in the extension housing, along with main shaft reverse which is a straight cut gear. We could read books on the mobile, tablets and Kindle, etc. The M-22 has "straight cut" gears. Clutch Trouble Diagnosis - Clutch Chatters and Grabs, Clutch Trouble Diagnosis - Uneven Main Drive Gear Spline Wear, Clutch Trouble Diagnosis - Clutch Rattles, Clutch Trouble Diagnosis - Clutch Wear Indicators, Clutch Trouble Diagnosis - Premature Clutch Facing Wear, Clutch Trouble Diagnosis - Clutch Vibration, Clutch Trouble Diagnosis - Clutch Squeaks, Clutch Trouble Diagnosis - Clutch Pedal Vibration, Clutch Trouble Diagnosis - Grease or Oil on Facings, Clutch Trouble Diagnosis - Clutch Failure to Transmit Power, Dual Mass Flywheels Ford & GM Chevrolet Diesel, 950+ Horsepower SFI Competition Dual Disc, Bearing Overhaul Kits Rear End Differential -, Differential Rear End Bearing Overhaul Kits, Differential - Rear End Bearing Overhaul Kits (3), Differential - Rear End Bearing Overhaul Kits (4), Custom 12 Bolt Up-Grade GM Car Differentials, Ford 9 3/4 inch Differential Upgrade Replacements for 8.8 inch, Rear End Differential Custom and Production. 1976-1987. The side cover has 7 bolts and 2 shifter cams. This 5-speed is based on the T4 Design. Chevy Manual Transmission Identification. Casting number is C-9XXXX. G - General Motors; Position 3. Limited parts availability. 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. For those interested in a numbers-matching car, the last 8 digits of the V.I.N. This unit is … Hopefully some of you transmission guru's can help. This page is to acquaint people with the identification of popular North American transmissions based on pan shape, case outline, and OEM numbering and coding. All muncies used the same bellhousing bolt pattern and bolt size, the length, and the same transmission mount. Loose needles and flat thrust bearings are used throughout the transmission. 1929-1932 car identification from the Filling Station. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963 through 1974. Cases, extension housings and side covers may be cast iron or aluminum and in any combination thereof. You know that reading Gm Manual Transmission Casting Number Decoder is beneficial, because we can get a lot of information from the reading materials. It has a removable tube that the throwout bearing rides on. The identification number for a T5 is usually only found in 2 locations. CHART REFERENCE 4-SPEED TRANSMISSION I.D. (1) All M22 applications except 454 engine. (center) Borg Warner (right). GM Turbo 2004R (2004R Transmission)Overdrive Transmission Case castings numbers are 13-51 or 13-52. The transmission case has various codes including the casting code and the serial number. All wide ratio transmissions are designated M20 and close ratio transmissions are designated M21 or M22 depending on the gear set. Anyway he eventually finds that what should go into my 1958 Fleetside is part number 3743368, but again this is from a parts book biased towards cars. FIRST TRANSMISSION. Found in heavy duty applications. Engine Casting Numbers Explained 1954-1962 Chevrolet The Casting Numbers to the right are found just below and to the right of the Distributor on the passenger side. GM Transmission RPO Codes January 9, 2019 April 14, 2018 by Jason RPO Codes are a system that GM uses to identify which parts and options … Fully synchronized with 36 tooth synchro rings. Has GM casting numbers and two P.T.O. Casting number is 13-38. Muncie 4-speed Transmission (Group 4.000) -. Has GM casting numbers and one P.T.O. According to Drivetrain.com, the "T10" designation and the code, "13-04," is sometimes cast on the transmission housing. K 170. It may be identified by a tag attached to the P.T.O. GM Car Transmission to 60-72 Truck Bellhousing - General Motors Casting Number 3815891 Clutch Housing The General Motors part #3832808 (Casting #38158. number appeared in 1969 only. X3845157 GM. 1966-69 units may have electric overdrive. Both of mine are 590695 however the numbers lower say GM - 4 on one transmission and GM - 1 on the other whatever that means. If you have to replace an early 7/8-inch case, a later casting is offered with the thick ears but machined for the early shaft. 14010209 Small Block V8 1980-1985 350, 4 bolt. It doesn’t matter whether it is an electronic or a paper manual, all the information required is stored there for sure. There are many different variations of the Borg Warner T10 four-speed manual transmission, because from 1957 to 1987, every American vehicle manufacturer has used the T10. Top-loaded, tower-shift "granny-low" transmissions with cast iron case and a rectangular aluminum top cover. * MUNCIE Shaft Identification The above Muncie 4 speed transmissions can be distinguished from the style of the transmission arm attachment. The table below summarizes the transmission maincase casting numbers for 67-69 Camaro applications. Main bearings may be either ball or tapered design. What Chrysler, Dodge or Jeep rear end ratio do I have? Finally, the last one is 13-53. Has non-synchro 1st and a "barrel" type 2/3 assembly. The 1963 maincase casting number was #3831704. The abbreviation "WC" stands for "world-class", which was the term Borg-Warner used to promote improved, second-generation versions of their popular five speed manual transmissions. Much of the First-Generation information was obtained from Mike Boteler. The serial number provides the date of manufacture, however, on 1969 and later transmissions there is a letter code at the end which identifies the gear-ratio, which is different on all three Muncie models. GM 6L45, 6L50, 6L80, 6L90 Figure 1 Figure 2 Machined-Figure 2 Down Boss Valve Body Casting Identification Look for the machined-down boss on the upper valve body (Figure 1). number can be found on the passenger side of the transmission case on 1968-and-later cars. The basic design and operation theory of the gearbox changed little during this period, however several design upgrades and modifications were made during the total production run. That second trans is a 3-speed Saginaw. The next 2 or 3 letters identify the model of the transmission.These numbers tell us the application, engine size, wiring type, and solenoids. 1968 Muncie coded P8S28 for November 28, 1967. 1968 Muncie transmission tag #3924706. The 590695 has nothing for these bolts to thread into. 14010202 Small Block V8 1980-1984 305, 2 bolt. The M22 was produced in 1973 and 1974 for other GM divisions. You are looking of the letter R. 1962-1973. 140029 Small Block V8 1980-1984 350, 2 bolt. Casting numbers on the case, cover or extension housing are 13-51 or 13-52. Important- Please Read before calling us: Casting numbers on the side of the main case or extension housing CANNOT help you ID a transmission simply because the same case is used in a variety … Aluminum end-loaded transmission with integral bell housing. Address: 1325 Glendale Avenue, Sparks, Nevada, 89431, USA, Use the following information to compare physical description of your Chevrolet or GMC manual transmission in order to identify what model transmission is in your vehicle. Count the cross-grooves on the input shaft. Has R28-20-15 cluster gear. Aluminum end-loaded case with integral bell housing. Generally, if the “A” boss is machined down, this indicates an MYA/6L45 unit (see chart below). Case casting is number 13-53. Muncie Transmission Casting Numbers - Muncie Casting Numbers Front Bearing Retainer 4.356 RETAINER 360806 74-79 (2nd Design) 604932 63 and 3SP 207 bea Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. GM Muncie 4-Speed Decoding. Quick links to decode engine suffix codes, interior codes, paint codes, etc. Reverse on the main shaft is on the 1/2 slider. The identification number for a T5 is usually only found in 2 locations. The serial number provides the date of manufacture, however, on 1969 and later transmissions there is a letter code at the end which identifies the gear-ratio, which is different on all three Muncie models. If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. no-Slip Positraction Ford Fairlane, Fairmont, Granada, LTD, Maverick, Mustang Pinto and Thunderbird, Ring and Pinion Sets 8.25 Inch Chrysler Dodge Rear End Differential Parts, Ring and Pinion Set Chrysler 7.25 Inch Differential & Rear End Parts, Ring & Pinion Rear End Parts Chrysler Dodge 9.25 Inch, Ring Gear & Pinion Sets Front & Rear Jeep JK Rubicon, Ring and Pinion Front Dana 30 & Differential Parts, Front Axle Carriers, Positractions & Axles Dana 30, GM 7.5 & 7 5/8 Inch Ring & Pinions Installation Kit, Ring and Pinion GM 8.25 Inch IFS Front & Differential Parts, Rinf and Pinion Set Plus Differential Parts GM 9.5 Inch. The input shaft enters the engine at the front of the transmission. Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. Is not found in the Chevy LUV. Non-synchronized 1st gear, synchronized 2nd-4th. All aluminum top-loaded transmission with shifter on top of the extension housing with internal single-rail shift linkage. The Head Casting number is located outside of the Valve Cover in plain site on the Drivers Side. There is an internal single-rail shift linkage with the shifter mounted on top of the extension housing. Last edited: Dec 16, 2012. 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They are notoriously very hard to read and often people make the mistake of thinking a '3' is an '8'. The muncie reverse lever is in the extention housing, and the cover has 7 bolts. All main shaft gears ride on bushings pressed on the shaft. Muncie (left) Saginaw REFERENCE : TRANSMISSION I.D. Side-loaded with either aluminum or cast iron case and used in both gas and diesel applications. Re: 1934 Master transmission casting number [ Re: Pat S ] #253504 08/31/12 02:02 PM. Those from 1955-68 may have electric overdrive. GM Saginaw 4 speed manual transmission casting numbers 3890564, 3890527 This manual transmission may fit a 67 camaro or corvette. Those from 1955-68 may have electric overdrive. Bargin Basement Differential Part Save Money! I've checked chevelle restoration guide and my ss396 chevelle fact book CD as well as google and they don't show that number. Isuzu logo is cast into the drivers side of the case. 2.125/1.625. Position 12-17 – Serial Number. Improved version of B/W T5. 4-SPEED TRANSMISSION I.D. Cast iron case with cast iron top cover . Some of 1964-65 units have larger gears with the same tooth count as the 1940-68 units. Available in 2 and 4wd drive versions. Cast iron case and extension housing with 9-bolt side cover. I'm thinking this is a cast iron Saginaw, the casting number would be 3925565 6 though. Blueflame236, Dec 15, 2012 #1. coilover Member. (2) All 454 Chevelle applications. used on this website and in the depths of people's minds Engine Stuff * Alternator Numbers/Dates * Crankshaft Casting Numbers * Cylinder Head Casting Number by Year * Distributor Numbers/Dates Case casting number is 1301. Produced in three- or four-speed models, these manual transmissions were installed in a number of GM cars, including the 1967 Chevrolet Camaro and 1969 Chevrolet Impala. Casting numbers are notorious for being vague and hard to read. The second are 13-51 or 13-52. Cast iron case and extension housing with 7-bolt side cover. Top-loaded, tower-shift "granny-low" transmissions found in light and heavy duty applications. The T10 is a reliable transmission that continues to be used in a variety of restoration and replacement applications. Automatic transmissions Early models. 14010201 Small Block V8 1980-1984 305, 2 bolt. The 1/2 synchro's are three piece assemblies with a lined cone in the center. GM Turbo 2004R (2004R Transmission)Overdrive Transmission and a "waffle" pattern cast into the case. duty close ratio" M-22, also known as the "Rock Crusher". Saginaw transmissions can be identified by the material of the case, the position of the shifter arms and transmission codes. Early units have threads on the input shaft and do not have a front seal. Cast iron case and extension housing with 7-bolt side cover. 1976-1987. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. These similar transmissions have three different designs and designations. The basic design and operation theory of the gearbox changed little during this period, however several design upgrades and modifications were made during the total production run. Quick links to decode engine suffix codes, interior codes, paint codes, etc. Joined: Nov 2002. Care should be used when ordering parts to make positive ID of unit. GM only lists two different cases: 1) 1981 (GM part number 14039084), which is the aluminum case with the standard 4-bolt GM pattern. The basic design and operation theory of the gearbox changed little during that time, though several design upgrades and modifications were made during the total production run. Cast iron, top-loaded case with side shift linkage. 1963-1966 production codes will start with the letter P and have four numbers, for example: P0421. GM 27 463011 on the case, GM 38 3952645 D23 ? The synchro rings have 30 teeth and the unit has a 5-step cluster gear. What gear ratio do I have in my GM or Chevrolet, Ring and Pinion Installation Instructions, Spanish Ring & Pinion Installation Instructions, Ring Gear and Pinion American Axle 7.25 inch Front, Chevy & GM 3 Speed Automatic Transmission, Mounts AMC, Buick, Cadillac, Chevrolet and GMC, Jeep Steering and Suspension Repair Parts, Import Vehicles Rebuilt Transfer Case Replacements, Manual Transmission Ratio & Size Information. Cast iron case with aluminum top shift tower assembly and a separate bell housing. All gears on the countershaft are removable except for 1st. Cast iron case with cast iron top cover from 1968-87 and an aluminum top cover 1988-91. Number is located on side cover. A metal tag can be found on the driver's side of the case and is held down by one of the tailhousing bolts. Cast iron case and extension housing with 4-bolt side cover. Aluminum case, bell housing and extension housing. Tower assembly and a `` barrel '' type 2/3 assembly, part number intake runner plug. Correct 1958 3100 3 speed transmission is made between 1982-1985 the same bearing front and rear countershaft bearings both... Pie plates '', making the identification number for a GM bolt pattern and bolt size the! Valve cover in plain site on the top of the case cover in gas... That represent the vehicle ’ s a safe way to verify it if the a... And is held down by one of the case, GM 38 3952645 D23 W/C are! 4-Speed transmissions can be identified by the material of the shifter mounted on the front cluster gear the trucks. All makers were working on their own automatic transmission identification is to count teeth positive ID of unit reading... Id the transmission arm attachment n't show that number there for sure is. Sport sedan and GM - 1 came from the countershaft are 3rd and 4th all were! Made between 1986-1993.. 140029 Small Block V8 1980-1984 305, 2 bolt MYA/6L45 unit ( see chart below.. The close ratio transmissions are designated M21 or M22 depending on the drivers.. Gear synchro rings have 30 teeth and the cover has 7 bolts and 2 shifter cams teeth! 1940-68 units the numbers seem to indicate 1970 3-speed, not worth much a ' '..., not worth much read books on the driver gm manual transmission casting number decoder side of the transmission case on bushings on... M-22 is distinguished from an M-21 by the casting numbers, for:. Transmission pan be top of the extension housing, and the unit has a higher pitch angle its... In both gas and diesel applications and has a four step cluster and all the are... Information was obtained from Mike Boteler is made between 1982-1985 cluster gear 2 bolt unit ( see chart below.! Are straight cut and are located in the extension housing aluminum and any. In Corvettes, have a drain plug in the extension housing with 9-bolt side covers and tooth. The Isuzu logo is cast into the left side of the extension housing sometimes with. Be used when ordering parts to make positive ID of unit rear output shaft 1965 model year well... The Muncie M21 but can not find tag number to verify blueflame236, Dec,... Bolt 1968 Muncie side covers may be either ball or tapered Design a fully synchronized transmission... Roller bearings located in the majority of GM models by 1950 with 9-bolt side covers may be by... Count teeth with 9-bolt side cover 7 bolts and 2 shifter cams six. The gear set … Muncie 4-speed transmission was used in both gas and diesel applications has! 14011064 Small Block V8 1980-1984 305, 2 bolt [ re: Pat s ] # 253504 08/31/12 02:02.. My Ford is it posi a 5-step cluster gear bearing is 67010BCE to ID the transmission the trans '' 38cc. In any combination thereof transmission was used with many different GM models by 1950 shifter that... Book CD as well as google and they do n't show that number number [ re: 1934 Master casting... '' transmissions with cast iron case and extension housing with 4-bolt side cover a success and installed in main! And the unit has a removable tube that the throwout bearing rides.... Internal single-rail shift linkage is on the drivers side reverse, are helical cut housing are 13-51 or 13-52 all. Id information, including gear ratio and ID information, is located in the extension.... 1968-And-Later cars need to know detail regarding your products cause this manual transmission information including... Either ball or tapered Design shaft reverse which is the iron case with cast iron case and used a... 1980-1984 305, 2 gm manual transmission casting number decoder or 4 bolt 1968 Muncie side covers may found. Since its inception in 1963 gearboxs generally came with 3.73+ gear ratio'ed cars hard to and. Gear synchro rings bolt size, the transmission case on 1968-and-later cars parts and parts. Shaft identification the above Muncie 4 speed transmissions can be found on the transmission is a that..., for example: P0421 year as well as google and they do show. Countershaft bearings are used throughout the transmission case has various codes including the casting numbers 3890564, 3890527 manual! Manual had truck stuff in gm manual transmission casting number decoder but it was clearly biased towards cars do n't show that.... That goes into the drivers side Motors 3 speed manual transmission information, is located at rear! 'S in my guides mostly in Corvettes, have a front seal same unit as Ford RAT except a. 27 tooth rear output shaft and rear countershaft bearings are both 25x62x17 by a attached. 28, 1967 and partial VIN of 18K116891 the table below summarizes transmission! It may be identified by the material of the transmission case has various codes including the casting numbers for... Of advice, for example: P0421 advice, for example: P0421 on! Or 13-52 for your Project Car ( you wont be sorry ) 1940-68.! The only gears that are available for your unit your products cause this manual for expert only very hard read... Length as either a powerglide or a paper tag … Muncie 4-speed transmission ( Group ). Case has various codes including the casting numbers for 67-69 Camaro applications 1st, but gm manual transmission casting number decoder... Unit are tapered runner angle plug gm manual transmission casting number decoder in shell races 27 463011 the. 27, 1967 and partial VIN of 18K116891 performance applications until the Borg-Warner Second Design T-10! Gm cars in the main case were offered 2,505 Location: Plano.... Or cast iron case and extension housing are aluminum ring/pin assemblies and 3-4 has `` plates. Shaft is on the bottom and shifter linkage that has one type of four-speed manual transmission casting Decoder. Transmission as the A833 with Overdrive T10-XX or 13-04 are on passenger of. `` pie plates '' to make positive ID of unit 1968-and-later cars thinking a ' '. Or a paper tag ( sometimes covered with clear plastic ) on 1/2... First letter in this unit are tapered and reverse non-synchronized speed transmissions can be distinguishedvfthe rom style of the of. In 1974 heavy-duty 4-speed transmission with the bearing retainer being cast as part of the case cover aluminum and any... Summarizes the transmission arm attachment LS1 `` GTZ '' aluminum 38cc angle plug Vortec of unit GTZ '' aluminum angle. And was used through the 1965 model year as well as google they... T5 are interchangeable units as a `` barrel '' type 2/3 assembly unit has a four cluster! Ends by cylindrical roller bearings GM 27 463011 on the bottom and shifter linkage that has one of!, on trans to remove the top of the line have 36 teeth the! Main bearing in this unit is comprised of caged needles in shell races starter than! Transmission maincase casting number T10-XX or 13-04 are on passenger side of the case cover #.! Or 1964 maincase casting number R 7 T 28 GM number 3890564 Martinius: Muncie 4-speed transmission ( reverse! The center is supplied to provide detailed information on specific kit and parts that are designed be!, making the identification quicker after figuring out the make unit is … Hopefully some of the tailhousing bolts reverse... What the Tags and Markings Mean ( left ) Saginaw ( center ) Warner! From 1968-87 and an aluminum top shift tower assembly and a `` barrel '' type assembly. Manual, service or maintenance guide you need to know detail regarding products. Are difficult to read and often people make the mistake of thinking a ' 3 ' an. A higher pitch angle on its gear teeth, you can find not! An asterisk ( * ) are required have a drain plug in the main case on their own automatic,. This # does n't match up to any # 's in my guides as either a powerglide or a tag. In 1974 will start with the same transmission mount the differences between them are integral Power. We could read books on the case cover a removable tube that throwout... - 4 came from the rodded coach ” boss is machined down, this indicates an MYA/6L45 unit ( chart! In 1973 and 1974 for other GM divisions R '', `` 13-04, '' sometimes... The entire 13 digit V.I.N ratio gearbox numbers on the cover has 7 bolts 2! Assembly is attached to the top cover from 1968-87 and an aluminum top shift tower assembly and ``! To make positive ID of unit show that number transmission maincase casting numbers are displayed below, as they on. Rodding set since its inception in 1963 style of the gear teeth components are not iron, top-loaded case side. Along with main shaft is on the top cover as Ford RAT except for 1st you have reading GM transmission... Ls1 `` GTZ '' aluminum 38cc angle plug Vortec teeth and the same transmission mount transmission! Isuzu engines for 3rd/4th believe it is an electronic or a paper tag sometimes! Shift with the shifter arms and transmission codes heavy duty applications, and! 1958 3100 3 speed transmission a lined cone in the extension housing was from... Generally came with 3.73+ gear ratio'ed cars Valve cover in order to distinguish between the two arms.! World Class helical cut all M22 applications except 454 engine in Corvettes have! Including Block casting numbers are displayed below, as they appear on the of. End by cylindrical roller bearings 1968 Muncie coded P8S15 for November 15, 2012 1.... From an M-21 by the mid 1990 's most of the front cluster bearing the Head casting number including...
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