2006вЂ“present: 6L80/ 6L90 - 6-speed heavy-duty (used in GM trucks and performance cars).

2007вЂ“present 6L45/6L50 - 6-speed medium-duty (used in GM Sigma platform cars).2000вЂ“2007 5L40-E/ 5L50 - 5-speed medium-duty (used in Cadillac's Sigma vehicles).Second-generation longitudinal (Rear Wheel drive) 1993вЂ“2010 4T80-E - 4-speed heavy-duty (used in large front wheel drive GM vehicles, only with Cadillac NorthStar V8 and Related Oldsmobile V8).1991вЂ“2010 4T60-E/ 4T65-E/ 4T65E-HD - 4-speed medium-duty (used in larger front wheel drive GM vehicles).1995вЂ“2010 4T40-E/ 4T45-E - 4-speed light-duty (used in smaller front wheel drive GM vehicles).1991вЂ“ 4L80-E/ 4L85-E - 4-speed heavy-duty (used in GM trucks)ДЇirst-generation transverse (Front Wheel drive).

1992вЂ“ 4L60-E/ 4L65-E - 4-speed medium-duty (used in GM trucks and rear-wheel-drive cars).

1991вЂ“2001 4е…ѓ0-E - 4-speed light-duty (used in BMW, Cadillac, Isuzu, and Opel cars).

Today, GM uses a simple naming scheme for their transmissions, with the 'Hydra-Matic' name used on most automatics across all divisions.ДЇirst-generation longitudinal (Rear Wheel drive) Most early electronic transmissions use the '-E' designator to differentiate them from their non-electronic cousins, but this has been dropped on transmissions with no mechanical version like the new GM 6L80 transmission. The next-generation transmissions, introduced in the early 1990s, were the electronic Hydra-Matics based on the Turbo-Hydramatic design. Also manufactured and used by Holden as the Trimatic transmission. A third variant was the light-duty rear wheel drive Turbo-Hydramatic 180 used in many European models. The basic rear-wheel drive Turbo-Hydramatic spawned two front-wheel drive variants, the transverse Turbo-Hydramatic 125, and the longitudinal Turbo-Hydramatic 425. The Turbo-Hydramatic was used by all GM divisions, and formed the basis for the company's modern Hydramatic line.

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.

1956-1964 4 speed Controlled coupling HydraMatic, also known as Cadillac 315 or P 315 HydraMatic, Oldsmobile Jetaway, Pontiac Super HydraMatic.

1968вЂ“1969 Torquedrive - Chevrolet (manually column shifted 2 speed automatic, 6 cyl only).

1964вЂ“1969 Super Turbine 300 - Buick/ Oldsmobile/ Pontiac (Oldsmobile Jetaway).

1961вЂ“1964 Roto Hydramatic - Oldsmobile/ Pontiac (also used by Holden).1961вЂ“1963 Dual Path Turbine Drive - Buick.1957вЂ“1961 Turboglide - Chevrolet (V8 models only, except Corvette).1968-1971 Torquedrive- Chevrolet ( Camaro and Chevy II, Nova.1950вЂ“1973 Powerglide - Chevrolet (also used by Pontiac, Holden, Vauxhall and Opel).1940вЂ“1967 Hydra-Matic - Oldsmobile (now the trade name for all GM automatic transmissions).All of GM's early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. The GM Hydra-Matic was a success and installed in the majority of GM models by 1950.

1948 chevrolet transmission