Beginning production development in 1977 (before its predecessor was released for sale) the 1980–1986 Bronco was designed to address many concerns that held the 1978–1979 Bronco out of production. Nominally shorter and lighter, the 1980 Bronco was designed to adopt a more efficient powertrain while retaining its full-size dimensions. In 1982, the Ford Bronco II made its debut; unrelated to the full-size Bronco, the Bronco II was a compact SUV based on a shortened Ranger pickup truck and sized similarly to the 1966–1977 Bronco. As with its 1978–1979 predecessor, the 1980–1986 Bronco shares much of its external sheetmetal with the F-Series pickup line, with the same parts from the doors forward. Prior to 1984, the hardtop included sliding window glass as an option. For 1982, the Bronco saw a slight facelift as it adopted Ford's blue oval emblem, taking the place of "F-O-R-D" lettering on the hood, and the bronco horse was removed from the fender emblems.