This from Mike Summa:

This was part of the Miller Woods Fire Protection District near Steger, Illinois.  I believe it to be a mid-1960s GMC van.  I know that it’s not a fire truck, but I just think that it’s neat looking.  Unique.  I hope that others will enjoy,
Thank you,
Mike S.
Miller Woods Volunteer Fire Department

From the Miller Woods Volunteer Fire Department. Mike Summa photo