69 chrysler 300 tail lamps

[jymy]

My 69 chrysler 300 is having two kinds of tail lamps. The ones which are nearest the center section are having only one button light socket and other are having two. I suppose those one button lights are brighter than the others so there is no brake/turn signal lights in these center ones? Is that the original set up or has someone of the previous owners modified the lamps?

 

[furyfinn]

I believe it's the original set up since my 300 has the same thing.

I use lower amp bulbs in the center to keep them as bright as the others...

 

[bluefury361]

My 69 chrysler 300 is having two kinds of tail lamps. The ones which are nearest the center section are having only one button light socket and other are having two.QUOTE]

That is how they are suppost to be. Brake & turn sig work with two bulbs per side, running lights have three.
All six bulbs should all maintain the same brightness when in "running light" mode and the brake&turn elements will brighten when activated. If they do not then the 1157 bulb(s) are installed backwards or there is a ground issue.
I always paint the inside of my light housings with "chrome silver" spray paint to brighten them up, including front and rear back up housings.