I totaly replaced the interior of my 86 trooper TurboD (225K) with the interior from a 91 trooper. The headliner was not changed. The Sun visors must come from an 86 - the newer ones will not work. Also, there was some difference in the way the rear seat was held in place where it attaches to the rear deck. The rear door cards on the 86 did not have speaker holes in them, so, I just installed the newer cards with the speaker covers in place, no speakers. Everything else fit right in. The newer front seat has a height adjustment - nice! 1992 was model change year so any trooper 86 - 91 should have many interchangeable body parts. I gave the junkyard $200 to strip all the interior parts I needed.