It may depend on the kind of pins. The later ones I've seen have pressed-in pins that should come out but may need quite a bang to get started, and may be very difficult to reach with the door on. On the other hand, my old 87 had roll pins, and they were a snap. drive out, drive new pin in. You could even drive the old pin out with the new one. 1/4 inch roll pins, buy 'em at the tractor store a half inch too long, install with the half inch on top and when they wear, bang then down a half.
Jeep supposedly makes a repair kit for the later type pins that includes new bushings.