you will need to get some track from a 97 and older ranger that has either buckets, or a 60/40. make sure it's the same cab as what you have, ie reg cab to reg cab. from there, mustang, explorer, tempo and others will swap in. you are going to have to drill 2 holes in your floor per side.
good list of seats:
http://therangerstation.com/tech_library/Seats.html