1966 was a one-year model, when Falcon and Fairlane were redeveloped on the same basic platform, one which did not include the sedan delivery as 1965 marked the final year of sedan delivery production. Instead, the 1966 Ranchero used Falcon front sheet metal, trim and interior accents on a modified station wagon platform. Engines available were the 170 cu in (2.8 L) I6, 200 cu in (3.3 L) I6 and two- and four-barrel versions of the 289 cu in (4.7 L) V8. Transmissions choices ranged from the C4 three-speed automatic to the three-speed column-shifted manual. The 1966 model was marketed simply as the Ford Ranchero, and did not carry Falcon badges. Seat belts were standard.
Source: Wikipedia, 2012