so the cab we have is a 94 (which has the 3rd brake light) and all the wiring in the entire truck except for that is from a 90. Well the 90 didn't have a 3rd brake light. does anyone know how I could wire that in?
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I would probably. Splice in at the brake pedal, or at the wiring that goes to the rear tail lights.
I've got an 1988 and am having the same trouble.Everything works,but for the life of me,I can't find 12 volts coming from switch .My tester works.Any help?
Thanks