From Chevy Wiki

Willow Run Transmission (also called Ypsilanti Transmission Operations) is a General Motors Corporation factory in Wayne County, Michigan. Opened in 1953, it produces Hydra-Matic Automatic transmission for use by General Motors and others. This factory was originally the Ford Motor Company Willow Run facility, which built B-24 Liberator bombers during World War II. From 1947 to 1953 it built Kaiser and Frazer cars for the Kaiser-Frazer Corp. On February 14, 2006, GM announced an investment in the Willow Run plant to produce the six-speed GM 6L80 transmission.

Current products:

• GM 4L80 transmission
• GM 4L85 transmission
• GM 4T80 transmission
• GM 6L80 transmission
• GM 6L50 transmission
• GM 6L90 transmission

See also

• List of GM factories

Geographic coordinate system: 42°14′7″N -83°33′30.42″E / 42.23528°N 82.44155°W / 42.23528; -82.44155