dash lights 68 cuda?

Rally panel has only 4 bulbs for illumination. These are spread somewhat evenly from left to right in the middle of up down. $ others around center pod for indicators is 8 total. The little screw with kept washer beside the bulb position is part of the ground path. The copper beneath the screw and everything related probably needs a good cleaning.
The bulb I use is Sylvania 2825 available most anywhere.