I'm planning to install dual tail lamps on my Sedan Delivery for better visibility and for turn signals. I see the Master Parts Catalog recognizes this under Group 2.679, P/N 916877 & 916878 using the 1939 Tail Lamps. Does anyone have the installation instructions that would show where these tail lamps should be located/mounted? Obviously, I can play around with them and come up with a spot where they'll do the job, but wondering if Chevrolet put out a more definitive approach with a template like they did for the back-up lamp installation.