your full build sheet is much longer than what we can dig up front chrysler. a lot of info was unfortunately lost at AMC before chrysler got it into their computers. if you look at a 90-92 MJ in the registry you'll see what I mean. but you could still have the original sheet of paper in your truck! possible locations are under a bench seat, behind a door card, behind the rear wall panel, or wadded up under the dash on the pass side.