For both trucks (96 ranger and 02 sport trac) I used the stock shafts front and rear(the ranger was upgraded with the 02+ one piece shaft, I used a 98 shaft at first, but the aluminum twisted the ear off about 2 weeks after install. IIRC, 01+ uses steel, not aluminum like the 98-00). But I also used the stock AWD tcases too. I tried using the 1356 on my ST, but it ended up contacting the frame. So I ended up using the AWD (4404) case for now, and will go with a 4406 electric case. I removed my shift motor from my stock 54 case, and installed it on the 56 case so I can have factory working controls of my tcase. There have been quite a few explorer owners that wanted the ability to have a low range case, and have swapped out the 4406 from an F150/expedition into there ex with success. I have not measured them, but suspect the 4406 is narrower than the 56, but it is quite long and has a slip yoke. My plan is to see if I can adapt the 56's fixed yoke in place of the slip yoke.
There has been ranger owners that have used the 56 with V8 swaps, but if you go the 56 route, make sure you get one out of a bronco instead of the trucks. Reason being is the trucks have a rear slip yoke output, the bronco's have a shorter fixed yoke.
SVT