4L80E TCM Identification

[4x4Junkie13]

After looking, analong and not finding, I contacted the Power Control Systems (PCS) manufacturer to get the exact info. The first letter denotes engine and the second denotes the production series by generation.
Listed as first A identifying Turbo or first B being N/A.

2100-AA: turbo first generation
2100-AB: turbo second generation
2100-AC: turbo latest generation

2100-BA: N/A first generation
2100-BB: N/A second generation
2100-BC: N/A latest generation

Hope this helps someone