push button 4x4 with torn up CV in front

[BoostedBoxer421]

So i was driving my 87 GL turbo, with the part-time (push button) 4wd 5-speed, and my front CV axle had been going out for a while, but finally earlier today did the dramatic "Crunch... POW!!" earlier and wouldn't drive in front wheel drive so I had no choice but to drive home in 4wd (Rear wheel drive) for about 15 miles. It drove the whole way perfectly smooth and it barely made any clicky click sounds around corners

 

my concern is if this could have damaged my front Diff. or the Center Diff??

 

And what transmissions can be easily swapped in, I have an RX tranny, a non-turbo D/R 5speed from an 87 GL, and another non-turbo part-time 4wd 5speed in an 86 DL