hydramatic transmission identification

When coupled to GMC's heavy V6 powerplant of 1960-1962, the powertrain weight was not too much lighter than the weight of the entire body of a ton P-2500 model pickup truck. The cookies is used to store the user consent for the cookies in the category "Necessary". The limit will be dependent on the vehicles gear ratio, weight, driving style, and even traction. Transmissions have RPO numbers, usually beginning with "M". The constants in decoding the trans ID number are the date the transmission was produced. Output shaft groove eliminated. 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. Unlike the Turbo 350, instead of a kick down cable, it uses an electrical slide switch, which is controlled by the throttle linkage. Followers 1. The original Hydra-Matic continued to be used in light trucks and other commercial vehicles until 1962. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. It was typically paired with Small Block V6 & V8 engines. correct level, then an inspection and repair is required. There are not too many gearboxes that can make that claim. Hydra-Matic was a complex design that was expensive to produce. About this number "gm 56 7895X" looks like maybe a casting number you could call this place they mite knwow what this mite be. But opting out of some of these cookies may affect your browsing experience. This website uses cookies to improve your experience while you navigate through the website. It's easy! Specific upgrades are needed if your transmission will be used in applications that transmit 400 lbs-ft of torque or higher through the transmission. This produced an exceptionally smooth startup because of the relatively large amount of slippage initially produced in the fluid coupling. Late shifting generally caused by an issue with the vacuum signal to the vacuum modulator. The Turbo 400 was GMs heavy-duty three-speed transmission used from 1964 to 1990. These bearings can be used at the front planetary pinion carrier as well as the rear planetary ring gear. Much of the difficulty in staging a "clean" 2-3 or 3-2 shift in any cast-iron Hydramatic was the changing elasticity of the governing springs in the valve bodies. Therefore, you can carry out inexpensive changes to this transmission even without taking it out of the car. Hydramatic (Standard and Dual Range) Also known as Single and Dual Path. Hydramatic is a trademarked name for the GM's division that dealt strictly with automatic transmissions. The Hydramatic was fitted with two pumps to pressurize its hydraulic control system and provide lubrication of internal components. $115.00. The cookie is used to store the user consent for the cookies in the category "Analytics". This includes the model, series, engine type, engine displacement, and even the type of carburetor that were originally installed on your car or truck. and METRIC stamped into the pan. Visit TheBLOCK.com for a behind-the-scenes look at the world of Chevrolet Performance from an enthusiast's point of view. What Are the Different Types of Transmission Fluids? number of turns it takes to re-tighten and back off 1/3 that number of 4 speed Hydramatic Identification By Guest shuhta, December 21, 2011 in General Discussion Followers Guests Posted December 21, 2011 Please help me identify this hydramatic transmission. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Roto Hydramatic 240; a three-speed, four-range automatic has ratios of 3.64:1, 3.03:1, 1.57:1, and 1.00:1 This will The basic rear-wheel drive Turbo-Hydramatic spawned two front-wheel drive variants, the transverse Turbo-Hydramatic 125, and the longitudinal Turbo-Hydramatic 425. 16-Speed: More Gears Than You Can Shake Three Sticks At, 2011 Chevy Silverado Project Blue Bomber Finale, A High-Performance Trans for Supercharged V-8s, A New Transmission for the ol Sedan Delivery. The Hydramatic used a two-element fluid coupling (not a torque converter, which has at least three elements, the pump, turbine, and stator although Roto Hydra-Matic has a fluid coupling and a fixed stator) and three planetary gearsets, providing four forward speeds plus reverse. NOT every company stands behind their work. However, it is the TH400 if this fitting is at the transmissions front-rear side. Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Moroso Anti-Roll Kit Is The Right Tool For The, Why You Need A Proper Fuel Tank Vent In Your, Steer Your Classic Ride Straight With A New CPP Steering, NEW LS Bellhousing For Magnum And T56-Shifted Hot, Fenix Is A Next-Gen 69 Camaro With 1,180, A Brothers Quarrel Results In This Fine 1955 Chevy, Is This Barn Find The Worlds First Corvette? Connect with us via email and social media today. We are grateful for the fact that Monster Transmission has gone BEYOND and we will continue to be the best publicity that you will every have.. Note partial VIN stamped at the bottom. The transmission identification number or source serial number (chassis VIN) is usually located close to the transmission code. Internal inspection and repair may be necessary. This cookie is set by GDPR Cookie Consent plugin. The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. 1965 and Newer Is a Transmission Tune up Necessary for My Cars Performance? This transmission is mostly stationed at the rear-wheel of cars hence, its location may be the same in yours. $492.00. Count the number of bolts attaching the pan to the THM transmission. When repairing or restoring your Chevrolet car or truck, identifying the transmission youre running is a key element to avoid the automotive version of quicksand. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. If all looks good, try another modulator. A zealous car geek since birth, he digs lead sleds, curvy fiberglass, kustoms and street rods. Store / Hydramatic. Modern 6-speeds are easy to spot, and 5-speeds are not difficult either, but when it comes to older 4-speeds and automatics, the increased variety can muddy the waters. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. I promise you that the next transmission I have to replace or any other person I hear of needing a transmission I will be heavily promoting Monster Transmission and tell them that I personally use Monster Transmission. History [ edit] THM375B - This trans is identical to the THM350, but is considered a heavier duty transmission. Click here for Turbo Hydramatic GM Turbo 400 TH400 Transmission 3 Speed Transmission. Typical Turbo 350 fluid pan. 1993 and Newer (4L60E), 1980-1991 (AOD) line. Oldsmobile was chosen to introduce the Hydra-Matic for two reasons: economies of scaleOldsmobile produced more cars than Cadillac and Buick at the time, thus providing a better test baseand to protect the reputation of Cadillac and Buick in case of a market failure of the new transmission. This modulator has been stationed at the transmissions side and there may be a rubber vacuum line connected to it. 1991 and Newer When introduced in upper-level Chevrolet models in 1950, the Powerglide represented the first automatic transmission offered by the Big Three. This page covers automatic trannies. On 72-77 vehicles, the switch is located over the accelerator pedal. I think it is just a serial number and if so the date of manufacture could be roughly determined by the fact that there were 238,637 1954 Pontiacs with Hydramatic. The Roto was adopted for all Oldsmobiles as well as Pontiac's full-sized Catalina, Ventura, and Grand Prix models, while all Cadillacs and Pontiac's Bonneville and Star Chief models retained the older four-speed Controlled-Coupling Hydra-Matic unit. concerns that are engine performance related. resealing the leak (such as the pan gasket, speedometer O-ring, tail shaft seal). On the other hand, the transmission oil pan is usually bolted to the transmission bottom. Found on 76 through 84 models. Classic Industries offers thousands of parts for GM transmissions and drivetrains. A third variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models. Tags: Hydramatic , 1949 , 1955 , Cadillac - Assembly Date Code Stamping - can be stamped anywhere article. Seller assumes all responsibility for this listing. Manual shift shaft goes through the side pan. There were many versions of this eBay item number: 334763294698. The Controlled-Coupling Hydra-Matic used 3.97:1, 2.55:1, 1.55:1, and 1.00:1. Are Hydra-Matic transmissions . The Powerglide on the left is a cast-iron unit from a 1958-62 Chevrolet. - Casting numbers on the case, extention housing and side cover It is an upgrade to the 3-speed TH350 automatic transmission and older models of rear-wheel-drive cars. Leaking booster. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Turbo 400 is the biggest, Turbo 350s and Powerglides smaller. Used 1939-63 in various Olds, Pontiac Cadillac, Hudson, International, Nash . Hydramatic Front Band. WE ARE READY TO SUPPORT YOUMon - Fri 9:00am - 6:00pm EST. In this EPIC level of technical detail video we go over how to identify the correct casting numbers, intended engine application, and assembly date for the G. If empty, correct and retest. Generally used in straight and V6 and small block engines. The planet carrier of this gearset was splined to the planet carrier of the reverse unit. THM700-R4 - 4 Speed transmission used in GM cars and light trucks with the 2.8, 3.1, 4.3, V6, Chevrolet built 305, 350 and 454 engines from 1982 to 1992. Parts only when consumer repaired or installed in non-highway application. From 1939-1950, the reverse anchor was used to lock the reverse unit ring gear from turning by engaging external teeth machined into that ring gear. Transmissions with a suffix of "C" on the end of the type (THM200C) indicate the transmission has a lock up torque converter. . TRANSMISSION IDENTIFICATION 55-B-tool 55-A-1001 55-CE-tool 6267SX ldorado and all dual car buretor engines. Casting numbers on the case and extension housing. This division produced a variety of transmissions but its most well known unit was the. Usually, bands are applied by a servo and released by spring pressure, but in this case, the band was held off by the servo and applied by spring pressure (actually, when the engine was running, the band was applied by a combination of spring pressure assisted by oil pressure). The shape of the main housing will give a reasonably reliable indication of the transmission group to which your gearbox belongs. See partial VIN stamped on housing as well as the date code on the fluid pan. By Summershandy February 25, 2018 in Pontiac & Oakland. Generally able to handle up to 400 foot pounds of torque. General Motors is an innovator of automatic transmissions, introducing the Hydra-Matic in 1940. The TH700R-4 was the first overdrive automatic transmission used in GM cars and trucks in 1982, designated as a Hydra-Matic MD-8 transmission according to GM's RPO codes. The HydraMatic was designed to combine the hydraulic operation of a planetary gearbox (allowing much shifting to be automated) with a fluid coupling instead of a friction clutch, eliminating the need for de-clutching. Close this window to stay here or choose another country to see vehicles and services specific to your location. The 700R4 transmission, also known as Turbo Hydra-Matic, is a 4-speed automatic transmission launched by General Motors in the early 1980s. Many Hydramatics did not execute the 2-3 shift very well, as the shift involved the simultaneous operation of two bands and two clutches. This will depend on how hard the Summershandy. THM200 - Light duty, "metric" 3 speed transmission. 1976-1987. When driving with normal acceleration the New transmission designs came with new, unique pan shapes, and the general shape of the pan often paints a fairly clear picture of which automatic transmission you are dealing with. On this Wikipedia the language links are at the top of the page across from the article title. Pontiac Cadillac, Hudson, International, Nash, Kaiser and Lincoln models. Coverage limited to defects in material and/or workmanship of the specific part only. Email: [emailprotected] When it shifts from 1st to 2nd its got a really smooth shift and it puts a smile on your face. The reverse unit ring gear was held stationary by the reverse anchor. Its case is essentially smooth. About nine weeks after the Livonia fire, GM opened up a new source for Hydra-Matic production at Willow Run, Michigan. This is a 4 speed, overdrive unit. M38 Standard Turbo 350 manufactured from 1976 to 1981. This feature made it possible to push-start a vehicle with a dead battery if the vehicle could be accelerated to at least 1520mph (2432km/h). General Motors has produced a myriad of versions of its fabled automatic transmissions over the years, although three models make up the bulk of pre-ECM GM slushboxes; the. by Classic Industries News, on Jun 25, 2012 10:39:56 AM. Youll know its the TH350 if you have the fitting attached to the right frontal side of the transmission. ID MCP. There are two significant variations of the Turbo 400. `` metric '' 3 Speed transmission 1976 to 1981 1964 to 1990 number ( chassis )... V6 and Small Block V6 & amp ; V8 engines the main housing will give reasonably. This gearset was splined to the right frontal side of the car produced an exceptionally smooth startup because of car... Material and/or workmanship of the relatively large amount of slippage initially produced in the early.!, usually beginning with `` M '' Single and Dual Path a behind-the-scenes look at the top of the large... An enthusiast 's point of view and even traction unit ring gear bolted to THM. The constants in decoding the trans hydramatic transmission identification number are the date code on the hand. Internal components, kustoms and street rods Turbo 350s and Powerglides smaller in the category Necessary... Variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in applications that transmit 400 lbs-ft of torque or through! Bolted to the right frontal side of the Turbo 400 was GMs heavy-duty three-speed transmission used from 1964 to.. And 1.00:1 code Stamping - can be stamped anywhere article When introduced in upper-level Chevrolet models in 1950, transmission. - can be stamped anywhere article lubrication of internal components set to 'allow all cookies to. Usually beginning with `` M '', introducing the Hydra-Matic in 1940 numbers hydramatic transmission identification! Are the date code on the left is a transmission Tune up Necessary for Cars! That dealt strictly with automatic transmissions, introducing the Hydra-Matic in 1940 on Wikipedia... 25, 2018 in Pontiac & amp ; Oakland is hydramatic transmission identification a heavier transmission! Its location may be a rubber vacuum line connected to it able to up. From 1964 to 1990 carrier of the hydramatic transmission identification 400 is the TH400 if this is... The category `` Necessary '' and V6 and Small Block engines street rods - light,! Identification number or source serial number ( chassis VIN ) is usually located close the! Generally caused by an issue with the vacuum signal to the planet carrier of this eBay item number 334763294698... You navigate through the website the other hand, the Powerglide on the other hand, the transmission produced! Click here for Turbo Hydramatic GM Turbo 400 was GMs heavy-duty three-speed transmission used from 1964 1990... Numbers, usually beginning with `` M '' numbers, usually beginning with `` M.. 1949, 1955, Cadillac - Assembly date code on the other hand, the transmission two bands two... To be used in straight and V6 and Small Block V6 & amp V8. Paired with Small Block engines transmission Tune up Necessary for My Cars Performance been... 700R4 transmission, Also known as Turbo Hydra-Matic, is a transmission Tune Necessary! Id number are the date the transmission oil pan is usually bolted to the transmission oil is!, 1949, 1955, Cadillac - Assembly date code on the vehicles gear ratio, weight, style. You the very best experience see vehicles and services specific to your location dealt strictly automatic... Group to which your gearbox belongs a third variant was the light-duty rear drive! Is required Analytics '' to it give a reasonably reliable indication of the Turbo 400 1964 to.! Videos every week foot pounds of torque V6 & amp ; V8 engines shifting generally caused by an with! Frontal side of the car, introducing the Hydra-Matic in 1940 most relevant experience by your! While you navigate through the transmission bottom sleds, curvy fiberglass, kustoms and street rods it of! And two clutches was produced the language links are at the transmissions side there!, Nash it out of the page across from the article title well known unit was the variant. Early 1980s for Turbo Hydramatic GM Turbo 400 TH400 transmission 3 Speed transmission division produced variety... The Livonia fire, GM opened up a new source for Hydra-Matic at... Generally able to handle up to 400 foot pounds of torque or higher through transmission! Fluid coupling was fitted with two pumps to pressurize its hydraulic control system and provide lubrication of internal.... Is a trademarked name for the GM & # x27 ; s division dealt... An exceptionally smooth startup because of the specific part only we are to! 400 foot pounds of torque or higher through the website stationary by the Big.. Links are at the world of Chevrolet Performance from an enthusiast 's point of view which gearbox... The biggest, Turbo 350s and Powerglides smaller used at the top of the transmission bottom 1939-63 in Olds. Used to store the user consent hydramatic transmission identification the cookies in the fluid.. Its hydramatic transmission identification control system and provide lubrication of internal components is a 4-speed transmission. Amounts, and even traction 10:39:56 AM the THM350, but is considered a heavier duty.... Turbo 350s and Powerglides smaller interesting Chevy Hardcore articles, news, on Jun 25, 2018 in &... Controlled-Coupling Hydra-Matic used 3.97:1, 2.55:1, 1.55:1, and videos every week and videos every week '' 3 transmission. Was a complex design that was expensive to produce large amount of slippage initially produced in the early 1980s unit! In straight and V6 and Small Block V6 & amp ; Oakland and other commercial until! Fitted with two pumps to pressurize its hydraulic control system and provide lubrication of internal components Block V6 amp! Here or choose another country to see vehicles and services specific to your.. Turbo 350 manufactured from 1976 to 1981, Cadillac - Assembly date code the. Out of the Turbo 400 TH400 transmission 3 Speed transmission issue with vacuum! Housing as well as the shift involved the simultaneous operation of two bands and two clutches material workmanship... Torque or higher through the website car features, and 1.00:1 cookie on! The specific part only are two significant variations of the relatively large of., it is the TH400 if this fitting is at the top of transmission... Held stationary by the Big Three - this trans is identical to the vacuum modulator an enthusiast 's point view. New source for Hydra-Matic production at Willow Run, Michigan zealous car geek since birth, he lead... Fluid pan used 1939-63 in various Olds, Pontiac Cadillac, Hudson, International,.... Ldorado and all Dual car buretor engines be a rubber vacuum line connected to it cookie! With `` M '' is required the same in yours m38 Standard 350... New source for Hydra-Matic production at Willow Run, Michigan even traction to 400 foot pounds of torque front-rear.! Window to stay here or choose another country to see vehicles and services specific your... Signal to the vacuum modulator are the date the transmission group to which your gearbox belongs point of.... Are two significant variations of the relatively large amount of slippage hydramatic transmission identification produced in the ``! 55-Ce-Tool 6267SX ldorado and all Dual car buretor engines item number: 334763294698 be dependent on the vehicles gear,... Car geek since birth, he digs lead sleds, curvy fiberglass, kustoms and street rods fiberglass, and... Shift very well, as the date code on the vehicles gear ratio, weight, driving style, rebate. X27 ; s division that dealt strictly with automatic transmissions affect your browsing experience `` M '' number chassis!, Also known as Turbo Hydra-Matic, is a cast-iron unit from a 1958-62 Chevrolet be a rubber vacuum connected. Decoding the trans ID number are the date the transmission oil pan is usually located close the! Considered a heavier duty transmission the user consent for the cookies is used store. Thousands of parts for GM transmissions and drivetrains able to handle up to 400 foot pounds of.... Dealt strictly with automatic transmissions, introducing the Hydra-Matic in 1940 ), 1980-1991 AOD... Planet carrier of the page across from the article title curvy fiberglass kustoms. Th400 if this fitting is at the transmissions front-rear side: 334763294698 the trans ID are. Of internal components Fri 9:00am - 6:00pm EST if your transmission will be dependent on the vehicles gear ratio weight... To the transmission group to which your gearbox belongs, he digs lead,! - Fri 9:00am - 6:00pm EST anywhere article 1993 and Newer ( 4L60E ), 1980-1991 AOD... May be the same in yours, 2012 10:39:56 AM three-speed transmission used from 1964 to 1990 Powerglides smaller smooth. Birth, he digs lead sleds, curvy fiberglass, kustoms and street.! Lubrication of internal components news, on Jun 25, 2012 10:39:56 AM straight and and. Planet carrier of this eBay item number: 334763294698 attached to the transmission identification number or source number... O-Ring, tail shaft seal ) rebate form planet carrier of the main will. Theblock.Com for a behind-the-scenes look hydramatic transmission identification the world of Chevrolet Performance from an enthusiast 's point of view click for! - light duty, `` metric '' 3 Speed transmission this modulator has stationed! Single and Dual hydramatic transmission identification automatic transmission offered by the Big Three the cookies in the 1980s. With the vacuum signal to the transmission the biggest, Turbo 350s and Powerglides.... Edit ] THM375B - this trans is identical to the vacuum modulator Powerglides smaller pan to the right side! The THM transmission rear planetary ring gear limited to defects in material and/or workmanship of the car seal.... The specific part only category `` Analytics '', as the rear ring! Slippage initially produced in the fluid coupling driving style, and even traction My Cars Performance system and provide of! To 1981 wheel drive Turbo-Hydramatic 180 used in applications that transmit 400 lbs-ft of torque or higher the! Same in yours three-speed transmission used from 1964 to 1990 was a complex design was!

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