They were in 1978 Corvettes and Chevy Novas, very possibly more
6L80e
It’s a 6L90E 6 speed GM automatic.
Most all GM 4L60E's should use Dexron III.
gm 4t65e
The transmission number GM 14080874 indicates a General Motors 4-speed automatic transmission, specifically from the 1970s, likely produced around 1977. This transmission is commonly associated with GM vehicles of that era, particularly those equipped with V8 engines. For precise identification, including the specific vehicle models it was used in, additional context or information may be needed.
4l60e
A type of automatic transmission fluid used in GM vehicles
A type of automatic Transmission Fluid used in GM vehicles
Gm synthetic available at the gm dealer
The numbers stamped on the transmission, GM 8680834 and 18564, indicate that it is a General Motors component. The first number, 8680834, is a part number that typically corresponds to a specific model or type of GM transmission, while 18564 might represent a date code or shift code indicating when it was manufactured. For precise identification, consulting a GM parts catalog or a specialist can provide more specific details about the transmission's application and compatibility.
muncie sm 318
4l60e