Yeah the two concerns would be 1) the rack and pinion steering and 2) the exhaust, but if your chopping out the IFS then theres no more r'n'p steering, and Im sure the exhaust could be rerouted to clear a drive line?
Could possibly be some transfercase to underbody interference, but that occurs on some 84-95 models when dualcases are installed, so that shouldnt be a problem, if any.
Maybe their is something more serious that we are overlooking? I dont know why I haven't seen any either. I dont have a taco though so I cant verify many problems...
Good luck and keep us informed
BigMike