241c transfer case issues.
 

I have a 95 241c not shifting right,with good vss,I have a good 91 241c with a possible issue with the vss plug.
Can I swap the 95 three prong vss plug into the 91 241c with a two prong plug?
Also is the vss plug check ball plug the vss itself or is the actual vss in the transfer case,and can it be swapped from the 95 into the 91?