Wiring is one of the most difficult parts of auto repair and restoration. These kits are designed with this in mind. They are designed so almost anyone can completely rewire their truck from front to rear. This harness is a generic type street rod style harness meaning when you are building a car from scratch starting with nothing this is the harness you need so you can wire it the way you want with the options you have. IT IS NOT A DIRECT REPLACEMENT HARNESS!!!!!!! So if your trying to replace your factory harness especially for the 67-87 trucks this is not your harness.