For some easy look-see, visit a wrecking yard and seek your model.
I've installed roof racks on a few Ramchargers and a Raider using nut-serts or riv-nuts.
1988 Mighty Max turbo 2.6 service body
1980 Power Wagon W400
Sundry Mitsubishi Montero Gen 1 parts
Parts vehicles: 1980 D50 2wd, 1988 Mighty Max 4wd, 89 LS Montero 4-door, 2002 Sport AWD
For Sale: 1989 Power Ram 50 extended cab