I have been waiting for these to come in for quite a while. I had a credit from a set of Polk 5.25 speakers that would not fit in the rear speaker openings. The store let me try and physically place all the different 5.25 speakers that they carry into the rear speaker mounting holes on my 1995 Trooper. None worked. I found an old post on ITOG long ago and saved it. Since the same store was about to become an Alpine dealer I have been waiting for these to come in. They have arrived. They fit the mounting hole just fine. They will require four new screw holes because the stock speakers are 4 or 4.5 inches not 5.25.
Here is a link to the Alpine SPS-1329S speakers that fit the rear of my 1995 Trooper.