AWD To 2wd

[GasGuzzler]

The Hummer doesn't have the same T/C system. What year?

[ProCharged-H2]

its a 2003 but GM agent installed for me a 2006 4wd when my transfer case got damaged last year,, so i have been trying everthing to make it on 2wd without removing the whole thing but nothing works even today i removed the accels but still nothing,, so any suggestions, my cousin got the wires map for the 4wd of the GC SRT8 and he worked out a way to switch the 4wd on and off with a button and its working perfect with him, like is there a way that i can do the same with GM 4wd