1984 Ford LN-Series 600-7000 Truck Sales Brochure. Ford's commitment to quality. Nowhere is Ford's commitment to quality more self-evident than in the LN mediums. That's because they bring to mediums many of the quality features on which Ford L-Line heavy duty trucks have built their reputations. They all share a steel-reinforced fiberglass tilting front-end -- as standard -- plus strong all-welded steel cabs. Highlights features, service ease, interiors, and includes specifications and optional equipment. Condition: Rusty staples. See pics.