1975 GMC Trucks Suburban Sales Folder. Suburban...big, roomy, comfortable, practical, and quiet. Our Suburban may be one of the few classics around. It's what a station wagon started out to be when the Suburbs were really in the country and the resort sent a made-over car down to the station to pick up their guest and baggage. Good ideas tend to get better and even though we've added to it over the years, our Suburban's design still gets the nod from people who want a blend of four passenger doors, comfortable seating, and the good practical points of a truck. On the practical side, you can have seating for up to nine, or 143.5 cubic feet of load space. Back shows available power and some available accessories. Good clean condition. ADV 75-4 (8-74)