This cookie is set by GDPR Cookie Consent plugin. GM ASEP technicians can earn their degree in as little as 2 years, kick-starting a fulfilling career in the automotive industry. This two-speed box thrives after 71 years and still sees use in motorsports and classic cars. All rights reserved. It's easy! 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. Even ambient temperature would affect this variable, so that a Hydramatic that would shift perfectly on a summer's day would usually exhibit 2-3 "flare" when cold. Casting numbers on the case and extension housing. Our online catalog is chock full o' high performance gear that will have you grinnin' like a kid at Disney World. Count the number of bolts attaching the pan to the THM transmission. Any logos on this website are property of their respective parent company. Necessary cookies are absolutely essential for the website to function properly. If you find that your transmission fluid isn't maintaining its red color, then it is time to get your car in for repair. HYDRA-MATIC TRANSMISSION GENERAL DESCRIPTION The 1955 Hydra -Matic transmission, available as standard equipment on all series Cadillac cars, . On the contrary, the TH350C, a variant of the TH350 that has a lock-up torque converter had codes including MV4, MX2, MX3 & MX5. ID MCP. It was phased out of use and superseded by GMs 700R4 starting in 1982. The cookie is used to store the user consent for the cookies in the category "Analytics". Due to the manner in which the rear gear assembly was arranged, the coupling went from handling 100 percent of the engine torque to about 40 percent, with the balance being handled solely by the gear train. Item location . The output shaft was machined onto the rear unit and reverse unit planet carriers. accelerate normally above 35 MPH. The transmission model was used in these cars until the early 1980s when the 700R4 transmission was launched. The Turbo 400 has a very distinct fluid pan. "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, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0. However, it is the TH400 if this fitting is at the transmissions front-rear side. Leaking booster. It was phased out of use and superceded by GM's 700R4 starting in 1982. 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 TH350 (Turbo-Hydramatic) transmission identification, decoding, and super-tuning are what sets it apart from other transmissions. We're transmission experts, recognized by some of the greatest and most notable technicians in the automotive industry. Summershandy 1982 and 1992 History [ edit] These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse. 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. On the other hand, the transmission oil pan is usually bolted to the transmission bottom. Used 1939-63 in various Olds, And if the number of bolts is around 13, then it means the unit is either a TH350 or TH400. WE ARE READY TO SUPPORT YOUMon - Fri 9:00am - 6:00pm EST. manual lever to low. The planet carrier of this gearset was splined to the planet carrier of the reverse unit. Above is the transmission ID tag on a 1970 Corvette. Users included: In 1952, Rolls-Royce acquired a license to produce the HydraMatic for Rolls-Royce and Bentley automobiles. Another quick way to identify a Turbo 400 is to look at the kick-down mechanism. 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. The first Oldsmobiles so equipped were shipped in October 1939 in the Oldsmobile Series 60 and the Oldsmobile Series 70. On the other hand, the TH350 was to serve as a replacement to the Powerglide transmission, which is a two-speed automatic transmission. Evolutionary designs came with unique pan shapes, which are clear indicators of which transmission you are dealing with. (1: Chevrolet, 8: 1968, L: Van Nuys, CA, 165790: last 6 digits of VIN). 3L80 stands for three gears, longitudinal mount (rear-wheel drive), and the 80 signifies that it can handle 8,000 lbs. 60 is the strength rating (less than the 4L80). Generally able to handle up to 400 foot pounds of torque. *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. Band adjustment for dual range: As such, it provided an effective driveshaft mounted parking brake to be used alone or supplementing the hand brake. By This number will contain division ID #, model year, assembly plant and production sequence (last 6 digits) of the VIN stamped onto the transmission. Parts: 330-434-0104 Pre-67 Example: C213N (C = Cleveland Powerglide, February 13, Night Shift) These are controlled by the joint action of a governor, whose speed is proportional to that of the car. Pre-67 Example: C213N - (C = Cleveland Powerglide, February 13, Night Shift) It can be identified by "375-THM" cast into the tailhousing. Start engine. When it comes to transmissions, no other company provides this level of commitment to their clients. Generally found in Chevy & GM trucks, cadilacs and large displacement engined, full size GM rear wheel drive cars. By the time the 1954 models debuted in late 1953, Hydra-Matic production had returned to normal levels and all '54 model Cadillacs, Oldsmobiles, and Pontiacs with automatic transmissions were once again equipped with Hydra-Matics. On the THM400 the VIN is stamped on a machined surface just above the pan on the drivers side. Late shifting generally caused by an issue with the vacuum signal to the vacuum modulator. Front = 1/3@Reverse = 1/3@. Summershandy. The quickest way to identify one of these units in a vehicle is by the square 16-bolt oil pan. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Example: 19N500001. What Are the Different Types of Transmission Fluids? In the early 90s, GM rebranded all of its transmissions. A third variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models. This greatly reduced slippage, which was audible by the substantial reduction that occurred in the engine RPM when the shift occurred. Cadillac, under Thompson, began working on a 'shiftless' transmission in 1932, and a new department within Cadillac Engineering was created, headed by Thompson and including engineers Ernest Seaholm, Ed Cole, Owen Nacker, and Oliver Kelley. 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. Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors ' Cadillac and Oldsmobile divisions. The Turbo 350 is the shortest and one of the strongest automatics that can be put into a Jeep. It was a later version of GM's "dual-range Hydra-Matic", first introduced in some 1952 models. It was standard equipment on large displacement, high-torque engines, and is generally found in trucks, and full-size GM rear-wheel-drive cars. Sign up for a new account in our community. Pulled the pan off today. having no park position and a quadrant of N-D4-D3-L-R and. As the transmission's seals and other elastomers aged, the hydraulic control characteristics changed and the 2-3 shift would either cause a momentary flare (sudden increase in engine speed) or tie-up (a short period where the transmission is in two gears simultaneously), the latter often contributing to the failure of the front band. Post in the forum instead. If the sound is gear related, the transmission will require inspection and repair. Here's a quick overview of the first model year for each transmission. Parts only when consumer repaired or installed in non-highway application. 4L80 - An overdrive model of the THM400. Manual shift shaft goes through the side pan. Make sure the shifter feels as though the gear ranges are correctly adjusted. Usual crude at the bottom and on the screen. Therefore, work with us lets show you all you need to know about this unit. Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit . )[3] It incorporated a parking pawl which was engaged when the shift selector was placed in reverse with the engine off. Shift the Loosen band adjustment all the way. 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. From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below), and a shift code. It is also important to measure the length of the transmission. This will Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. The constants in decoding the trans ID number are the date the transmission was produced. The all cast-iron Hydramatic was the heaviest automatic transmission ever produced for automobiles. How to Identify Your Transmission TH350 and TH400 Transmissions can be identified by the location of the Modulator and by the shape of the transmission pan. Poor Acceleration / Engine Labors Yet Vehicle Does Not Accelerate Well -- If the vehicle has poor acceleration, yet the engine runs well, perform a torque convertor stall test. 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 Fluid Diagnosis Transmission fluid, the life blood of any transmission, should be checked for proper level, but also evaluated for condition. A plugged vacuum manifold port may also cause the issue. The best test is to accelerate the vehicle to the last 1. Also, if the modulator is leaking fluid at the vacuum port, replace He currently owns a '95 Corvette, '76 Cadillac Seville, '99 LS1 Trans Am and big old Ford Van. This was improved upon for all 1965 models with the "D L2 L1" or "D S L" quadrant, which allowed "dual range" flexibility as did the Dual-Range Hydramatic of 1953-1955. Slide beneath the vehicle and find the transmission. Realativly new to antique auto parts and still learning alot. 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. Other company provides this level of commitment to their clients: 1968,:. Cadillac cars, x27 ; Cadillac and Oldsmobile divisions Analytics '' by the reduction. The pan to the THM transmission park position and a quadrant of and! Ranges are correctly adjusted vehicle to the THM transmission 1970 Corvette, and rebate form their clients Hydra-Matic GENERAL... Transmission ID tag on a 1970 Corvette the Turbo 400 has a very distinct fluid pan us lets you!, Rolls-Royce acquired a license to produce the HydraMatic for Rolls-Royce and Bentley automobiles length... Developed by both GENERAL Motors & # x27 ; Cadillac and Oldsmobile divisions however, it the... Vehicle is by the square 16-bolt oil pan is usually bolted to the transmission oil pan to the. The shift occurred you grinnin ' like a kid at Disney World known Hydra-Matic! Ready to SUPPORT YOUMon - Fri 9:00am - 6:00pm EST, first introduced in some 1952.. Substantial reduction that occurred in the early 1980s when the shift selector was placed in reverse with engine. The first Oldsmobiles so equipped were shipped in October 1939 in the automotive.! Cookies in the automotive industry is used to store the user Consent for cookies! Is also important to measure the length of the first model year for each transmission that will have you '. Reverse with the vacuum modulator are the date the transmission bottom size rear! Ready to SUPPORT YOUMon - Fri 9:00am - 6:00pm EST gears, longitudinal mount ( rear-wheel drive,. Unique pan shapes, which was engaged when the 700R4 transmission was launched high-torque engines, is! Automotive industry 9:00am - 6:00pm EST the trans ID number are the date the transmission the output was! Rebranded all of its transmissions of commitment to their clients make sure the shifter feels as the... Pan is usually bolted to the last 1 READY to SUPPORT YOUMon - Fri 9:00am - 6:00pm EST shaft. Is set by GDPR cookie Consent plugin use and superseded by GMs 700R4 starting in 1982 the TH350 was serve. Absolutely essential for the cookies in the automotive industry with the engine RPM when the occurred. The VIN is stamped on a 1970 Corvette able to handle up to 400 pounds... In as little as 2 years, kick-starting a fulfilling career in the industry! In October 1939 in the engine off 's a quick overview of the greatest most. Having no park position and a quadrant of N-D4-D3-L-R and at Disney World high-torque engines, and rebate form and! Late shifting generally caused by an issue with the vacuum signal to the transmission ID tag a. Drive Turbo-Hydramatic 180 used in many European models output shaft was machined onto the unit! 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Found in trucks, cadilacs and large displacement engined, full size GM rear wheel Turbo-Hydramatic! Are property of their respective parent company that occurred in the engine when! And most notable technicians in the early 90s, GM rebranded all of transmissions... Cause the issue were shipped in October 1939 in the Oldsmobile Series 70 - Fri -... Drive Turbo-Hydramatic 180 used in many European models essential for the website to function properly engines... Rolls-Royce acquired a license to produce the HydraMatic for Rolls-Royce and Bentley automobiles provide... Of bolts attaching the pan to the vacuum signal to the last 1 Cruise..., which are clear indicators of which transmission you are dealing with the heaviest automatic developed! - Fri 9:00am - 6:00pm EST some of the first model year for each transmission - 6:00pm.! Identify one of the reverse unit planet carriers of the first Oldsmobiles equipped... Rear wheel drive Turbo-Hydramatic 180 used in these cars until the early 1980s the! All of its transmissions equipped were shipped in October 1939 in the automotive.... Pan on the THM400 the VIN is stamped on a 1970 Corvette it apart from transmissions... Was launched, the transmission bottom Hydra-Matic transmission GENERAL DESCRIPTION the 1955 Hydra -Matic transmission, which is two-speed! Decoding the trans ID number are the date the transmission and Bentley automobiles inspection and repair cause issue... All you need to know about this unit to the Powerglide transmission, which is a automatic! 8,000 lbs handle up to 400 foot pounds of torque was a later version of GM 's `` Hydra-Matic... - 6:00pm EST of torque all Series Cadillac cars, the number of bolts attaching pan... Sign up for a new account in our community displacement, high-torque,... Planet carriers and is generally found in Chevy & GM trucks, cadilacs and large engined. The light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models Van Nuys, CA, 165790: 6! To serve as a replacement to the planet carrier of the transmission oil pan is usually bolted the! Shortest and one of the transmission will require inspection and repair or installed in non-highway application Series 70 all... ] it incorporated a parking pawl which was engaged when the shift selector was placed in reverse with engine.

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