* 4L60E (or variations like 4L65E): A four-speed automatic transmission, very common across many years and models.
* 6L80E: A six-speed automatic transmission, used in later model years.
* 6L90E: Another six-speed automatic, also found in more recent models.
* Manual transmissions: While less common in recent years, some 5.7L Chevy trucks were offered with manual transmissions, though the specific gear counts varied over time.
To know the specific transmission in *your* 5.7L Chevy truck, you need to check the vehicle's identification number (VIN) or look at the transmission itself (usually there's a tag with the identification code).