I am now rewiring my '51 Chev 3100. A few years ago I bought a turn signal kit that mounts under the dash, a toggle switch type. I redid the front parking lamps with 12 volt ,1157 type sockets and now am working on the back. What exactly do I use in the stock type tail light to acheive brake , atil and signals? I can't seem to fit two large bulbs in that little rear light. It looks like the old ten pounds of sh-- in a five pound bag! Please , any help would be great/ Thanks