Ford F-250 Crew Cab
The F-Series was redesigned in 1973; the grille featured two silver-metallic plastic inserts divided by an aluminum bar that was part of the main grille frame, with the letters "F O R D" spaced out in a thin rail in the upper part of the grille. Large round headlights were on either side of the grille with the park/turn signal lamps placed above in the same rail where the "FORD" lettering was. Medium-duty models, however, weren't redesigned as drastically as the light-duty trucks. In 1976, this familiar "split-grille" design was facelifted slightly to feature black accents around the headlights and a refined appearance overall.
In 1976, the F-series became the best-selling truck in America, a position it has continued to hold ever since. This generation is noted for the durability of the body panels as Ford used extensive amounts of galvanized sheet metal to fight corrosion. 1977 was the first year for smaller cowl insignias moved near the windshield and the last year for the medium-duty F-500.
A true four-door pickup is a crew cab. It features seating for up to five or six people with a rear bench seat and two full-size front-hinged doors on both sides. Crew cabs are not available in combination with the longest bed or box in some cases, particularly in lighter-duty models, to limit their overall length and required wheelbase.
Source: Wikipedia, 2012