Exactly where do I drill the 2 holes each side in the firewall for the sidelight mounting brackets for 1914? I want to get them in the exact locations so when I come across the original brackets or have $65 bucks extra for repops the holes will be right. Some measurements of the brackets would also be helpful. I just bought a couple good lights and would like to put them on but I may have to cut out some brackets with a plasma cutter for now. Thanks.
You have to consider the lights themselves. If the brackets are part of the sidelight, then the holes are in a different place on the firewall.