General Motors · 2005–2023
GM 6L80 transmission
The 6L family is a series of 6-speed automatic transmissions produced by General Motors for longitudinal engines. It uses a Lepelletier planetary gearset, an epicyclic gearset, which can provide more gear ratios with significantly fewer components than prior models could. It was first realized in 2000 with the 6HP from ZF Friedrichshafen. The Ford 6R, AWTF-80 SC, and ZF 6HP transmissions are based on the same globally patented gearset concept. The AWTF-80 SC is the only one for transverse engine installation.
Text from Wikipedia (CC BY-SA 4.0).
Predecessor: GM 4L60-E transmission · Successor: GM 8L90 transmission
All General Motors GM 6L80 transmission data: UK builds, safety, recalls, model years →
Specifications
- name
- 6L 45 · 6L 50 · 6L 80 · 6L 90
- Production
- 2005–2023
- Manufacturer
- General Motors
- Class
- 6-Speed longitudinal, automatic transmission
- Predecessor
- 5L 40-E · 5L 50
- Successor
- 8L 45 · 8L 90
- Related
- Lepelletier planetary gearset, Aisin AWTF-80 SC, Ford 6R, ZF 6HP
Specification summary from Wikipedia (CC BY-SA 4.0). Check the linked sources for citations.
Sources
- Wikidata — https://www.wikidata.org/wiki/Q5513825CC0 1.0 · retrieved 2026-10-01
- Wikipedia — https://en.wikipedia.org/wiki/GM_6L_transmissionCC BY-SA 4.0 · Text © Wikipedia contributors; revision 1359007823 · retrieved 2026-10-01
- Wikimedia Commons — https://commons.wikimedia.org/wiki/File:Ypsilanti_Automotive_Heritage_Museum_May_2015_069_(Hydra-Matic_6L80_transmission).jpgCC BY-SA 4.0 · Photo: Michael Barera · 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.