68 Dart damaged instrument cluster circuit board

My recollection is the correct bulbfor instrument lighting is 158.
Check your owners manual, or faciling that, the FSM.
IIRC 194 was used later on for outside side markers.
In particular for the turn signal indicator bulbs it is important to have the correct ones so the flasher unit work at the proper rate.

The bulb holders are common, although quality of the replacements vary...