Here's some broad answers to your vague question about parts.
Exterior: 89-92 (except where RangerBoy pointed out.)
Interior: 89-94
Suspension: 83-97 (The exception being the beams and spindles because of the ball joints. I don't know if the 4wds differ at all between D28 and D35 at the ball joints.)
Brakes: 83-94 (Though, 95-97 had a dual piston caliper that will work as long as you swap the brake line with it.)
Engine/Transmission: Any year that has your same engine will work (Except distributor parts, and if you have a 4.0 it also depends on if you have a OHC or OHV.) ***Double check journal/bearing/gasket part numbers and sizes before taking my word for it***
After all that, you're pretty much left with the piddly stuff that holds the ranger together: like bulbs, bolts, accessories, and wires.