The running lights on my Electra Glide have loosened up. They look like a cross-eyed old man. I am sure that the bolt between the top and bottom light is hollow, with wires running through each bolt. I believe I need a special split socket to tighten the nut but donĀ“t know the exact size. I would only ike to but/manufacture one size socket. Does anyone know what size the nut is holding the passing lamp and turn signal together is?