Select options above to learn about disassembly process, cleaning and upgraded internal components. Max Power Rating – 1100HP to 2500 HPĭesigned, Engineered and Assembled in the USA at our state-of-the-art Philadelphia, PA facility. This unit has undergone over 40 years of contiguous, rigorous R&D and on track testing. Powerglide was the first automatic transmission available on a low-priced car. Your transmission will be built with and backed by over 30 years of experience. This process ensures that you the customer gets the highest quality product each and every time. All dependsamong other things, whether we’re talking 1950 or 1973. Whether the transmission is intended for a daily driver, off road trail blazer, drag racer, or street rodder our goal is to give you the best shifting, best performing, and most reliable unit available. Unlike many production builders, our transmissions are handcrafted from beginning to end by one highly skilled and experienced technician. Assembled to the same exacting specifications as our top of the line 5500 series transmissions, these units are without a doubt the best value for your money, while still providing you a transmission you can trust to put the power to the ground! Our “entry level” Powerglide transmission features many high-end items that other companies charge extra for. The inventors of the spragless converter and the aftermarket helical Powerglide planetary, TSI is known worldwide for manufacturing and assembling the highest quality transmissions and components. TSI has pioneered much of the technology that is now commonplace in the transmission marketplace. The constants in decoding the trans ID number are the date the transmission was produced.For over 40 years Transmission Specialties has been the trusted name in the performance automatic transmission industry. This elevated level of durability is another reason a Powerglide is perfect for bracket racing, as they can take a beating for an extended amount of runs. ![]() From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below), and a shift code. A Powerglide transmission is very durable in stock form start adding some aftermarket parts and you have one stout unit. Prior to 1967, transmission ID numbers contained the plant prefix code, month and date of production (expressed numerically), and a shift code (D = Day, N = Night). Assembled to the same exacting specifications as. On the Turbo 400, the VIN is stamped on a machined surface just above the pan on the driver’s side. Our entry level Powerglide transmission features many high-end items that other companies charge extra for. On the Turbo 350, the VIN will be stamped on either the driver’s 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. Additional Serial Number Info of the Turbo 350 and Turbo 400 Leading provider of high performance automatic transmissions, torque converters and drivetrain components for race, street/strip, hot rod, street rod and. Turbo 400 transmissions were partial VIN stamped either above the pan rail on the driver’s side (very difficult to see with the exhaust system installed) or on the driver’s side of the bell housing as indicated in the picture. The Turbo 475 was an extra-heavy-duty version and was found in larger trucks from 1971 on. It is identified easiest by its “375-THM” designation cast in the underside of the tail housing. At the 1,000-plus rear-wheel hp level, the only two GM transmissions that are up to the task are the three-speed TH400 and the two-speed Powerglide. The Turbo 375 was a version of the transmission used from 1972 through 1976, in small displacement cars. ![]() There are two significant variations of the Turbo 400. The "kick down" switch locations for the Turbo 400 On ’72-’77 vehicles, the switch is located over the accelerator pedal. Generally, in ’68-’71 vehicles, the switch is located on the carburetor. ![]() Unlike the Turbo 350, instead of a “kick down” cable, it uses an electrical slide switch, which is controlled by the throttle linkage. The Turbo 400 is the largest of the GM auto transmissions, but still surprisingly compact in light of the immense power they can handle.Īnother quick way to identify a Turbo 400 is to look at the kick-down mechanism. It also uses the same vacuum modulator as the Turbo 350. The fluid pan shape is irregular, being likened to distorted Texas state borders. The 400 transmission has a main case of cast-aluminum alloy with a length of 24-3/8-inches long. The Turbo 400 has a very distinct fluid pan.
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