This might be a little long so bare with me.
I just bought a 06 LBZ CCSB, non running from the information I've gathered its a 06 body on a 02 frame.
"Previous owner" had a LB7 in it. he swapped the 06 Dash out with a 01-02 to make the old LB7 motor work.
So with all the Engine, Transmission...