AWD transfer case

[djcobraman427]

I have a '99 Tahoe with the NP246 electric shift transfer case. Is it possible to replace this with an all wheel drive transfer case? Besides a MPG loss, are there any reasons not to do this, if it is possible?

 

[lesterl]

Having to maintain equal tires on all 4 corners. Be a bitch if you had to tow it...