Actually up to a 97 will bolt up & fit. However the wiring for the brake light defroster & wiper will not match up. You can cut & rewire however. The 91 tail lights will have some gap around them from the different taillight cutout. Also, the glass will not match in color, & those are not interchangeable with the different hatches.
Another note, any rear bumper from 91-97 is interchangeable. I have a 97 on my 94.