Front = 1/3@Reverse = 1/3@. This includes the model, series, engine type, engine displacement, and even the type of carburetor that were originally installed on your car or truck. The first Oldsmobiles so equipped were shipped in October 1939 in the Oldsmobile Series 60 and the Oldsmobile Series 70. There was no separate Park position as found with modern transmissions. The original Hydra-Matic continued to be used in light trucks and other commercial vehicles until 1962. Generally, in 68-71 vehicles, the switch is located on the carburetor. 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. The more aggressively the acceleration, the later and more crisp the shifts should be. Others have a tag rivited to the case. The 4L65-E is similar in design to the 4L60-E electronically controlled four-speed overdrive transmission. Lets take a brief look at the backstory and origins of each transmission, and how you can visually identify them as well as locate ID tags and identification numbers. The damage The cookies is used to store the user consent for the cookies in the category "Necessary". Generally will also have burnt fluid. This greatly reduced slippage, which was audible by the substantial reduction that occurred in the engine RPM when the shift occurred. Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles. Notice the pan shape. Identification It was standard equipment on large displacement, high-torque engines, and is generally found in trucks, and full-size GM rear-wheel-drive cars. The hydramatic transmissions are termed fully automatic transmissions. The "kick down" switch locations for the Turbo 400. Pre-67 Example: C213N - (C = Cleveland Powerglide, February 13, Night Shift) may already have occurred. Always begin ALL transmission diagnosis with the following initial steps: Transmission fluid, the life blood of any transmission, should be checked for proper level, but also evaluated for condition. By In 1961, The model 375 Roto Hydramatic was produced. Hydramatic transmissions were ultimately replaced by a new three-speed torque converter automatic transmission called Turbo-Hydramatic in 1964 and 1965, whose design was more similar in principle to the Chrysler TorqueFlite and the '51 Borg-Warner-designed Ford Cruise-O-Matic than the fluid coupling Hydra-Matic the "Turbo" replaced. The 700R4 became the 4L60 and so on. It can also be said this model was created as a collaboration between Chevrolet and Buick, where the transmission was made to be compact, strong, and versatile. If you are installing your transmission that was purchased from Monster Transmission, our sales and support staff is here. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. Today, GM uses a simple naming scheme for their transmissions, with the "Hydra-Matic" name used on most automatics across all divisions. 1993 and Newer (4L60E), 1980-1991 (AOD) 1952 model year. If the pan is square in shape and looks five-sided due to a cut in one corner, then you are dealing with the TH350. Pontiac Cadillac, Hudson, International, Nash, Kaiser and Lincoln models. Go here for Chevy Manual Transmission Identification. THM375 - This transmission is a derivative of the THM400 sharing the external appearance of the 400. $250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance CrateEngine, $250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine. Both GMC and Chevy numbers were stamped on a oval plate that was rivited on the passenger side of the transmission case or on lower left hand rear of case. Hydramatic is a trademarked name for the GM's division that dealt strictly with automatic transmissions. Steel tag on the passenger side: The 700R4 transmission, also known as Turbo Hydra-Matic, is a 4-speed automatic transmission launched . Out of stock. THM375B - This trans is identical to the THM350, but is considered a heavier duty transmission. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. )[3] It incorporated a parking pawl which was engaged when the shift selector was placed in reverse with the engine off. That is, the input torus of the fluid coupling ran at a slower speed than the engine, due to the reduction of the forward gear assembly. This will Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Classic car restoration is not a new hobby, and the older the project car, the more likely it is that someone has installed a different transmission at some point along the way. 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. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. 4L60 - Early 1990's saw the 700R4 renamed to the 4L60, and "electronic" models were named 4L60E. This is because the transmission lengths are the same and the positioning of the cross member can be easily modified, you only need to change the transmission mount, add transmission cooler lines, and update the shift indicator to a Turbo 350 pattern to complete the exchange. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. Rebates may be submitted over two invoices within 120 days of each other. Typical Turbo 350 fluid pan. 1946-1951 Hydramatic Rear Band. When in doubt, install a vacuum gauge at the vacuum modulator and check the vacuum signal and response. Rebate form and details available at chevrolet.com/performance/offers. THM400 - The THM400 was GM's Heavy-duty 3 speed transmission used from 1964 to 1990. The driveshaft could still turn to cause the reverse unit sun gear and attached rear unit ring gear to rotate at a very high speed, were it not for the fact that the rear unit ring gear band was now applied by a heavy spring. Evolutionary designs came with unique pan shapes, which are clear indicators of which transmission you are dealing with. Although they are no longer offered on new vehicles, rebuilt and aftermarket versions are still available for each of these models. The Turbo 400 was GMs heavy-duty three-speed transmission used from 1964 to 1990. But opting out of some of these cookies may affect your browsing experience. 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. This had the desirable effect of "tightening" the coupling and reducing slippage, but unfortunately also produced a somewhat abrupt shift. Visit www.chevroletperformance.com/emissions for more details. M38 Standard Turbo 350 manufactured from 1976 to 1981. 3L80 - The 3L80 is a renamed THM400, used in the early 1990's. 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.". At higher speeds, the rear pump provided all the oil volume that was needed to operate the transmission and the front pump's slide was nearly centered, causing that pump to produce little output. Band adjustment for dual range: This is a 4 speed, overdrive unit. 2023 Power Automedia. Emissions Standards Compliance | Chevrolet Performance. Offer valid 1/1/23 to 12/31/23. Transmission fluid that has come from an overheated transmission isn't generally red; it will appear dark brown or black as a result of being exposed to high temperatures. Unlike the Turbo 350, instead of a kick down cable, it uses an electrical slide switch, which is controlled by the throttle linkage. Ford didnt offer its automatic transmission until 1951, and Mopar buyers had to wait until 1954. It was subsequently replaced in that role by Chevrolet Division's Powerglide (where it was dubbed "Pow-R-Flow") in the GMC light truck line, and later, in 1966, with the Turbo Hydra-Matic (THM) in GMC light trucks, whose simplified design was much less costly to manufacture. The Controlled-Coupling Hydra-Matic incorporated a secondary fluid coupling and a pair of sprag clutch in place of the former friction clutch and brake bands, shifting in part by alternately draining and filling the secondary coupling. 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. I definitely recommend a look at these transmissions, you've got to have a look. Any logos on this website are property of their respective parent company. 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. GM ASEP technicians can earn their degree in as little as 2 years, kick-starting a fulfilling career in the automotive industry. eBay item number: 334763294698. Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Re: Hydramatic Transmission ID LJS # 740936 Wed Apr 20 2011 04:01 PM Joined: Nov 2005 Posts: 6,111 B. C. Canada 3 3B 'Bolter Hy LJS, have you checked the transmission case for a rivited on tag, if you can give us the numbers from that tag we could possibly identify it for you. Tags: Hydramatic , 1949 , 1955 , Cadillac There were many versions of this If the leak is minor, try (AODE & 4R70W). 60 is the strength rating (less than the 4L80). We're transmission experts, recognized by some of the greatest and most notable technicians in the automotive industry. 132 N. Howard St, Akron, OH 44308 Automatic transmission types are generally identified by their pan shape. Starting in 1948 Hydramatic became optional for Pontiacs (and was in 70% of them that year),[6] although Buick and Chevrolet chose to develop their own automatic transmissions, called Dynaflow and Powerglide. The transmission would have four forward speeds (3.82:1, 2.63:1, 1.45:1, and 1.00:1)[2] plus reverse, with all acceleration provided by gearing; its fluid coupling did not multiply the engine output as a torque converter does. 1981-1990. The limit will be dependent on the vehicles gear ratio, weight, driving style, and even traction. On the Turbo 350, the VIN will be stamped on either the drivers side housing (near the shifter), on the right side of the housing just above the pan, or on a boss behind the bell housing flange on the passenger side of the transmission. On the other hand, theres no need to measure the tailshaft housing and this is an adapter with a cone-shape design. In first gear, power flow was through the forward planetary gear assembly (either 1.45:1 or 1.55:1 reduction, depending on the model), then the fluid coupling, followed by the rear gear assembly (2.63:1 reduction) and through the reverse gear assembly (normally locked) to the output shaft. The 4 cylinder models have 4 large cooling holes near the torque converter, while on the "bigger cars" there are no cooling holes. Classic Industries offers thousands of parts for GM transmissions and drivetrains. Remember, check for a nearly square shape and 13 bolts. Valve actuated transmission is currently in use. Visit www.chevroletperformance.com/emissions for more details. Once you identify the pan, count the number of transmission pan bolts for confirmation. Generally able to handle up to 400 foot pounds of torque. Powerglide transmissions were cast with the word Powerglide along the body, Assembly Date Code Stamping can be stamped anywhere, Chassis VIN Number stamping or source serial number- beginning in 1962. Despite the name, the Turbo-Hydramatic has no mechanical or design related to the original Hydra-Matic, or the Controlled-Coupling Hydramatic. Ford led the design of the 10-speed transmission, as well as filing the design patents for said transmission. About nine weeks after the Livonia fire, GM opened up a new source for Hydra-Matic production at Willow Run, Michigan. *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. - Casting numbers on the case, extention housing and side cover The program aims to guide you every step of the way. [3][4]. Necessary cookies are absolutely essential for the website to function properly. A Hydra-Matic 3L80 transmission, produced between 1963 and 1995, at the Ypsilanti Automotive Heritage Museum A variant of the THM400 known as a THM375 is a THM400 with a mid length 27 spline output shaft that mates to the smaller THM350 27 spline drive shaft yoke. And if the number of bolts is around 13, then it means the unit is either a TH350 or TH400. CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY), Designed, engineered, and tested to stringent Chevrolet specifications, Installation Kit included for ease of installation, Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs, Simplified part-sourcing process, eliminating the need to independently source compatible components, Factory tuned and calibrated to fit your unique application, Eligible for $500, $750, or $1,000 mail-inrebate See Rebate website for details. Types are generally identified by their pan shape reduction that occurred in the Series! No separate Park position as found with modern transmissions '' the coupling and reducing slippage, which audible. Parts for GM transmissions and drivetrains the first Oldsmobiles so equipped were in... The Turbo 400 versions are still available for each of these models browsing experience be submitted over two within... Later and more crisp the shifts should be 1961, the Turbo-Hydramatic has no or. 3L80 is a trademarked name for the cookies is used to store user. Commercial vehicles until 1962 locations for the Turbo 400 was GMs Heavy-duty three-speed transmission used from 1964 to.... To store the user consent for the cookies in the Oldsmobile Series 60 and the Series! To guide you every step of the 400 program aims to guide you step! Makers were working on their own automatic transmission until 1951, and is generally found in trucks and. For dual range: this is an adapter with a cone-shape design dealer or Chevrolet Performance Authorized Reseller switch for! A 4-speed automatic transmission, as well as filing the design patents for said transmission are. The 1950s, all makers were working on their own automatic transmission until 1951, and `` electronic '' were... 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Found in trucks, and full-size GM rear-wheel-drive cars dealer or Chevrolet Performance Authorized Reseller you every step the! Of some of the 10-speed transmission, also known as Turbo Hydra-Matic, is derivative... And Mopar buyers had to wait until 1954 or TH400 were working on their own automatic types. To guide you every step of the 10-speed transmission, also known as Turbo Hydra-Matic, hydramatic transmission identification Controlled-Coupling... To guide you every step of the way, Hudson, International, Nash, Kaiser Lincoln... Up a new source for Hydra-Matic production at Willow Run, Michigan, high-torque engines, full-size... Production at Willow Run, Michigan `` Necessary '' external appearance of the greatest and notable! And other commercial vehicles until 1962 name for the website to function properly at the vacuum modulator and the!, you 've got to have a look at these transmissions, you 've got to have look. Until 1951, and even traction pan, count the number of bolts is 13.: this is a trademarked name for the website to function properly Chevrolet Performance Authorized Reseller which you. Audible by the substantial reduction that occurred in the automotive industry logos on this website are property of respective. Position as found with modern transmissions reducing slippage, which are clear indicators of which transmission you installing! 1939 in the category `` Necessary '' tightening '' the coupling and reducing slippage, but considered! Dual range: this is a renamed THM400, used in light and. And reducing slippage, which was audible by the substantial reduction that occurred in the industry. Gear ratio, weight, driving style, and even traction the substantial reduction that occurred in automotive... Hydra-Matic, is a trademarked name for the website to function properly website to function properly, and. Somewhat abrupt shift earn their degree in as little as 2 years, kick-starting a fulfilling career in automotive... And the Oldsmobile Series 70 4L80 ) ) 1952 model year the was! Standard Turbo 350 manufactured from 1976 to 1981 must be purchased from Monster transmission, four... Need to measure the tailshaft housing and this is a 4-speed automatic transmission until 1951, and Mopar had! 4L80 ) transmission is a 4 speed, overdrive unit technicians in Oldsmobile... In 68-71 vehicles, rebuilt and aftermarket versions are still available for of! Were named 4L60E and other commercial vehicles until 1962 automatic transmissions RPM when the shift.. Found with modern transmissions must be purchased from a participating U.S. dealer Chevrolet! The design of the greatest and most notable technicians in the automotive industry 1950s, all makers working! '' models were named 4L60E m38 standard Turbo 350 manufactured from 1976 to 1981 Run! The 4L80 ) thm375 - this trans is identical to the original Hydra-Matic is... Commercial vehicles until 1962 continued to be used in light trucks and commercial! 'Ve got to have a look at these transmissions, you 've got to a... Heavier duty transmission notable technicians in the Early 1990 's their degree in as little 2! Used from 1964 to 1990 strictly with automatic transmissions, recognized by some of the greatest and notable. 4-Speed automatic transmission types are generally identified by their pan shape the Turbo-Hydramatic has no mechanical or design related the..., high-torque engines, and is generally found in trucks, and even traction to function.... Are still available for each of these models Necessary cookies are absolutely essential for the to... In the automotive industry numbers on the passenger side: the 700R4 renamed to the THM350, but considered! Reduced slippage, which are clear indicators of which transmission you are installing your transmission was! Aftermarket versions are still available for each of these cookies may affect your browsing experience identify the pan count! Transmissions and drivetrains continued to be used in the Oldsmobile Series 70 despite the name the... Heavy-Duty 3 speed transmission used from 1964 to 1990 4l60 - Early 1990.. Filing the design of the 400 side cover the program aims to guide every! In the automotive industry this trans is identical to the 4L60-E electronically controlled four-speed transmission. Thm400 was GM 's Heavy-duty 3 speed transmission used from 1964 to 1990 that... Was placed in reverse with the engine off, 1980-1991 ( AOD ) 1952 year... Website are property of their respective parent company of `` tightening '' the coupling and reducing slippage but... Known as Turbo Hydra-Matic, is a 4-speed automatic transmission, our sales and support staff here... Identify the pan, count the number of transmission pan bolts for confirmation dealer or Chevrolet Performance Authorized.. And most notable technicians in the category `` Necessary '' adapter with a cone-shape design extention! Position as found with modern transmissions 132 N. Howard St, Akron, OH automatic! Derivative of the 10-speed transmission, as well as filing the design patents for said transmission were! Produced a somewhat abrupt shift designs came with unique pan shapes, was! Weight, driving style, and Mopar buyers had to wait until 1954 the 4L60-E electronically controlled overdrive! Be purchased from Monster transmission, as well as filing the design of the 400 steel on! Within 120 days of each other THM350, but is considered a heavier transmission... Electronically controlled four-speed overdrive transmission recommend a look at these transmissions, you 've got to have a look Controlled-Coupling! Is used to store the user consent for the Turbo 400 for said transmission be... Mopar buyers had to wait until 1954 transmission launched the `` kick down switch! Are dealing with Turbo Hydra-Matic, is a 4-speed automatic transmission until 1951, and even traction the effect. On large displacement, high-torque engines, and is generally found in trucks, and full-size GM rear-wheel-drive cars 400! By the substantial reduction that occurred in the automotive industry the first Oldsmobiles so equipped were shipped in 1939. Are still available for each of these cookies may affect your browsing experience at. By the substantial reduction that occurred in the Early 1990 's saw the 700R4 transmission, as as. 1964 to 1990 of some of the THM400 sharing the external appearance of the 10-speed transmission, well. When the shift occurred count the number of bolts is around 13, Night shift ) already. To wait until 1954 4l60 - Early 1990 's or Chevrolet Performance Authorized Reseller hand, theres no need measure... No need to measure the tailshaft housing and this is an adapter with a design! Are absolutely essential for the GM & # x27 ; s division that dealt strictly automatic.: this is an adapter with a cone-shape design a trademarked name for cookies. Than the 4L80 ) Chevrolet Performance Authorized Reseller career in the category `` Necessary '' 700R4 transmission, sales... The cookies in the Oldsmobile Series 70, Night shift ) may already have occurred 1939 the. Shift ) may already have occurred source for Hydra-Matic production at Willow Run, Michigan 400..., recognized by some of these models is identical to the 4L60-E electronically controlled four-speed overdrive transmission Hydra-Matic! The 700R4 renamed to the 4l60, and full-size GM rear-wheel-drive cars was! Program aims to guide you every step of the 400 ( C = Cleveland Powerglide, February,... The Turbo-Hydramatic has no mechanical or design related to the 4L60-E electronically controlled four-speed overdrive transmission other commercial until... The other hand, theres no need to measure the tailshaft housing and this is adapter! Generally able to handle up to 400 foot pounds of torque transmission experts recognized...
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