I will start off by saying that I have never even seen a Perris Pacer
, so my comments are i respect to "general practice".
A lot of times, there will be a dual element bulb that is brakes
on the bright element and running lights on the other element, with turn sigs on a separate, stand-alone bulb that would be behind an amber lens.
Others (Far more common on trailers!) may have brakes/turn sigs on the bright element and running lights on the other, with the separate bulb being for back-up lights.
Do you have the lenses for the lights? If not, now is you opportunity to install whatever kind of lights YOU want back there, by wiring in what YOU want!