the screws that hold the back plate over the lenses are ther phillips or hex head screws? when these screws are removed you can take the cover off to access the lenses.
Ron -
These fasteners on my '68 Z/28 are all hex head screws. They all have a big G (for Guide?) with a smaller L (for lamp?) inside the G on the heads of the fasteners.
Paul
I will get a pic tomorrow.
Ron,
My survivor car one of each, phillips and the other hex. Either is correct for your car but do both the same so they match. Don't duplicate factory defects.
Jerry
Jerry you wont beleive this but mine also has both! On mine the right hand side has phillips and the left has hex head screws! maybe the right side assembly worker ran outta hex head screws ???