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2. GM 4L80-E transmission - Wikipedia

   en.wikipedia.org/wiki/GM_4L80-E_transmission

   Designed for longitudinal engine configurations, the series included 4 forward gears. It was the 4-speed electronically commanded evolution of the 3-speed Turbo-Hydramatic 400, first produced in October 1963. 4L80-Es were optioned only in Chevrolet/GMC pickups, vans, and commercial vehicles, and the Hummer H1.

3. Epicyclic gearing - Wikipedia

   en.wikipedia.org/wiki/Epicyclic_gearing

   This planetary gear train consists of a sun gear (yellow), planet gears (blue) and carrier (green) inside a ring gear (red) An epicyclic gear train (also known as a planetary gearset) is a gear reduction assembly consisting of two gears mounted so that the center of one gear (the "planet") revolves around the center of the other (the "sun").

4. Turbo-Hydramatic - Wikipedia

   en.wikipedia.org/wiki/Turbo-Hydramatic

   Another variant is the 3L80HD, often referred to as a Turbo 475. The 3L80HD has a straight-cut planetary gear set. There is no externally visible way to determine whether the transmission contains the straight-cut planetary gear set. The THM425 front wheel drive transmission shares almost all its internal parts with the THM400.

5. Ravigneaux planetary gearset - Wikipedia

   en.wikipedia.org/wiki/Ravigneaux_planetary_gearset

   The Ravigneaux gearset is a double planetary gear set, invented by Pol Ravigneaux, who filed a patent application on July 28, 1949, in Neuilly-sur-Seine France. [1] This planetary gear set, commonly used in automatic transmissions, is constructed from two gear pairs, ring–planet and planet–planet. The gearset provides four forward gear ...

6. GM 4T80 transmission - Wikipedia

   en.wikipedia.org/wiki/GM_4T80_transmission

   Designed for transverse engine configurations, the series includes 4 gear bearing overdrive [1] [2] 2 electronic shift solenoids, and electronic force motor to control line pressure. [ 3 ] The 4Txx family is an evolution of the original Turbo-Hydramatic 125 transverse automatic introduced in the 1980 model year "X" body.

7. Allison 1000 transmission - Wikipedia

   en.wikipedia.org/wiki/Allison_1000_transmission

   A final clutch can tie carrier 2 together with ring 3 to the input. For the fourth gear like for gears 1 - 3, the sun gears are all connected to the input and in addition, ring 3. Thus the last system is in direct drive and all gears in the transmission rotate together for a ratio of 1:1. There are two overdrive configurations.

8. Dynaflow - Wikipedia

   en.wikipedia.org/wiki/Dynaflow

   Dynaflow (Buick) The Dynaflow was an automatic transmission used in various forms in Buick cars by the General Motors Corporation from 1947 until 1963. The transmission initially used a five-element torque converter, with two impellers and two stators, as well as a planetary gearset that provided two forward speeds plus reverse.

9. Planetary gears - Wikipedia

   en.wikipedia.org/?title=Planetary_gears&redirect=no

   This page was last edited on 27 July 2024, at 13:07 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...