The 1G alternator (left) was Ford's first alternator. Externally regulated, it came on the scene in 1964 and soldiered on through the mid-1980s. Cases may vary in appearance.

The 1G was upgraded in 1986 with the second-generation “2G” that used ... • Use at least a 4AWG charge wire between any 130-amp-plus alternator and ... Ford Alternator Upgrade for More ...