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GM's Automatic Safety Transmission (AST) was a semi-automatic transmission released in 1937. The first mass-produced fully-automatic transmission developed for passenger automobile use was the GM Hydramatic introduced in 1940. [1] The Hydramatic was a big success, and had been installed in the majority of GM models by 1950.
The GM–Ford 6-speed automatic transmission is an automatic transaxle originally designed for transverse engine applications in cars. With design work having begun in 2002, General Motors and Ford Motor Company jointly committed to investing US$ 720 million in their manufacturing plants to support the new transmission.
GM lists the weight of the 6T30 with fluids at 71.5 kg (158 lb), while the 6T40/45/50 weigh between 82 kg (181 lb) and 90 kg (198 lb). GM launched the 6T35 250 nm, a higher torque variant of the 6T30, with the 2016 Cruze and its new 1.4 L turbocharged engine, saving space and approximately 24 lbs over the 6T40 used in the prior turbocharged Cruze.
GM has invested more than $1 billion in the plant since 2011. Investments include: $204 million (2011) – 8-speed (8RWD) transmission program [1] $83 million (2011) – 6-speed (GF6) transmission enhancement [1] $55.7 million (2013) – increased capacity and tooling for all-new 8-speed (8RWD) and existing 6-speed transmission programs [1]
The 6L 50 (and similar 6L 45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors.It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France.
The torque, or rotational power that prevents the ignition switch from changing modes, was required by GM's own standards to be between 10 N·cm and 20 N·cm (Newton centimeters). However, it was less than 10 N·cm, a force so little that made it prone to changes in modes which could potentially shut off the engine. [ 11 ]
Allison Transmission Holdings Inc. is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over 250 vehicle manufacturers and are used in many market sectors, including bus, refuse, fire, construction, distribution, military, and specialty applications.
The New Venture Gear 3500, commonly called NV3500, is a 5-speed overdrive manual transmission manufactured by New Venture Gear and used by GM and Dodge in compact and full-size light trucks. It can be identified by its two-piece aluminum case with integrated bell housing and top-mounted tower shifter.