The awd tranny has never been swapped into a b13 or b14 as far as I know. It would cost a ton of money to try and make it work. You would have to fabricate mounts for the rear diff and axles not to mention you would have to make a tunel if you will for the drive shaft going from the front to the rear. Like I said, to my knowledge it has never been done. You are not the first person with this idea nor the last. The reality of you actually converting it to awd is very very slim. It will cost you alot more money than its probably worth.