allison transmission

[crazy_kusabi]

Hi i have a quastion about a allison transmission in a silverado duramax 2002 3/4 6.6 diesel! I want to know if a allison (years 2005) from the same model truck will fit for my 2002?

[2Trout]

Hi i have a quastion about a allison transmission in a silverado duramax 2002 3/4 6.6 diesel! I want to know if a allison (years 2005) from the same model truck will fit for my 2002?

I believe you can swap the transmission OK, but the TCM on later models uses a different interface/language, I am sure more experienced members can chime in.