I have a 94 2 wheel want make it 4 wheel. it has a 5 speed and 4.0. I got a 89 4.0 auto. want to use front and rear ends, drive shafts, don't know about transfer case if it can bolt to my 5 speed. any imput ?

 

Lots of Jeeps have 5 speeds that are 4x4. I got one, 87 model.
I haven't researched it so its a guess.
Your going to need a new tail housing for the transmission and might even have to completely disassemble the tranny and change the output shaft to a 23 spline to fit the NP231.

Now using the Automatic, you might need the Computer to go with it and associated wiring. Your also going to need the detent cables and brackets to run to the throttle body.

I'm sure someone will be along shortly to help fill in the blanks.