[quote name='gfd1' timestamp='1335973452' post='483812']
Not to belabor the point, but my 1978 4wd pickup had round headlights, so this must be a 1979.
[/quote]
Not necessarily. Round headlights were standard on lower trim level pickups in 1978, but the rectangle ones were used on the upper trim level packages. They became standard on all levels in 1979. The upper level trim on 1978 models usually included chrome mouldings along the side of the body, which this one doesn't have, but they could have been removed.
Not to belabor the point, but my 1978 4wd pickup had round headlights, so this must be a 1979.
[/quote]
Not necessarily. Round headlights were standard on lower trim level pickups in 1978, but the rectangle ones were used on the upper trim level packages. They became standard on all levels in 1979. The upper level trim on 1978 models usually included chrome mouldings along the side of the body, which this one doesn't have, but they could have been removed.