Re: front drive shaft boot tearing
Does your jeep have a lift, which would increase the angle of the propeller shaft and giving the CV boots a hard time. The T-case is not the problem. If you could seal it of in a good way, so that water and/or dirt/dust can go in the CV coupling, it should work as well.
The rear CV coupling boot is quite short and has just a little bit of rubber on it, so it will not easily withstand larger angles (between propeller shaft and T-case coupling) then for the standard ride height.