I have a 94 Z71. I have bought a 99 tahoe that has been rolled but still runs and drives i was thinking about puting the motor trans and auto trac in my truck but instead of going thought the wireing. i was just going to swtich it to a carb, i know there is a box that you can buy that plugs in that lets the 4l60e shift right but does it comtrol the transfer case too. becasue mine is the stick shift transfer case and the tahoe has the auto trac in it What can i do? or what should i do? and i what i dont use will be up 4 sale!!!