This 21 circuit direct fit 1967 - 1977 Ford F-Series Ford truck harness is the perfect upgrade. It uses many of the factory connections that are already pre-terminated. Also featured is our unique covered micro-fuse block with a 20 amp auxiliary relay circuit for accessories such as fog lights, or an electric fuel pump. Each wire is custom printed with the circuit identification as well as using Ford color codes for easy installation. It also includes all brand new headlight, ignition, dimmer, wiper and brake switches.