General Motors · 1998–2009
General Motors GM 5L40-E transmission
The 5L40-E (and similar 5L50) are a series of automatic transmissions made by General Motors. Designed for longitudinal engine configurations, the series includes 5 forward gears and is used in the GM Sigma platform vehicles from Cadillac, the Pontiac Solstice, BMW, and Holden Commodore. The electronically controlled transmission is designed around a fully articulated Ravigneaux planetary gearset that is controlled by electronically timed application of several range-specific hydraulic clutches, in combination with mechanical one-way sprag clutches. The 5L40E unit's centerpiece is an automatic overdrive which supersedes the French-made 4L30E four-speed automatic light-duty gearboxes, and like them features a torque converter clutch to eliminate slipping losses in select forward ranges. It is assembled in Strasbourg, France. The 5L40/50 series was replaced in 2007 with the 6L50 six-speed.
Text from Wikipedia (CC BY-SA 4.0).
Generations & variants
Sources
- Wikidata / Wikipedia profiles — https://models.autoculturesociety.com/cars/Q5513823CC0 / CC BY-SA 4.0
- Wikipedia — https://en.wikipedia.org/wiki/GM_5L40-E_transmissionCC BY-SA 4.0 · Intro text © Wikipedia contributors; revision 1345895604 · retrieved 2026-10-01
- Car Model Index — https://models.autoculturesociety.com/Compiled record. Sources that do not permit reuse are not copied; this index is credited instead.