Convert AWD transfer case to 4WD unit?

I've tried searching, but haven't come up with anything. Was just under an 03 Tahoe, and looks like mechanically it might be straight forward, but I'm not sure how in-depth the wiring goes, since the TCM probably controls the AWD system.

Anyone research/perform this swap?

(I am an automotive tech with access to a techII, but not the GM service manuals.)

Andrew MacPherson
-------------------
03 Escalade
TT RT/10 Viper
Hummer H2
C5 Vette