I'll be wiring my headlights in the near future and I have a question about the three prongs on the back of a sealed beam unit.There is a prong on top and then two below it. Which of the three does the manufacture consider to be the ground prong?

-Mike-

Last edited by sleeve; 06/22/2012 4:17 AM.
1945 Chevrolet G 506 1.5 Ton Military 4X4
1967 Jeep Cj5 with 283 SBC