Where are these holes for?

Okay, perhaps a few of the guys that have been talking about reflectors and warning lights can help out with this one. What are these holes that are just inboard of the reflector locations on my ambulance? Look like they were for some sort of civvy clearance lights. Anyone able to help?

The mystery holes are circled in pink. (hey, it stands out best)

Mine didn't have those.

No holes on mine. the ones under that are for a trailer plug on the M715

Didn't you post that picture on the Zone a few months ago? If it wasn't you, then somebody had a very similar looking hole. (That doesn't read right, but I am not sure how else to put it.) It was figured out on the other picture, that somebody had put a pedestal type license plate light mount there. That seems to be what yours is too.

It was me, but never saw a conclusive response to my inquiry. That makes sense, Barrman, but there is ANOTHER one, same type mounting holes, on the opposite side, just inboard of the OTHER reflector mounting position.

…perhaps something special to your vehicle only that was field modified…?

Most likely was done by a fire company that got it... or the like. It's much easier to mount stuff like that than it is to round up factory style tail lights.