The 8.8 out of another ranger should bolt right in, The shafts are also the same.
You will not have to change anything, I took an 8.8 out of a 94 and bolted it right in to my 97 with no problems. I also had the 7.5" axle before.
The parking brake cables are also the same.
The axles are different on the 92 and older rangers, they aren't as wide.
Any info you need to know about Rangers can be found there.