The piece under the back window is the same. The 'B' pillars, where the speakers are, are different between the 2 body styles. Early standard cab trucks, (pre-'95) all came with the full plastic trim.
The long 'A' pillar trim that goes all the way back over top of the door, the larger roof piece over the rear window, the full 'B' pillar trim which goes floor to roof, & the large piece under the rear window. They may or not come with the passenger side 'A' pillar 'Holy Crap!' handle.
If you are wanting to swap the early stuff into the later year trucks, you will also need the headliner from the early truck. The later year H/L's are shorter side to side by about 1.5", & do not tuck into the longer 'A' pillar pieces over the door as they should.
The later year H/L's are longer front-back, but that doesn't make a difference, as the early plastic piece will fit over top of it.
Both styles of interior pieces use the same overhead light in the same position, so no probs. there.