This from Crossroads ambulance sales and service Facebook page:
Gary Fire Department | Medwerks Ambulance Remount | Ford F550 – Type I 
#chicagoareafire.com; #ambulance; #GaryFD; #FordF550; #CrosroadsAmbulance; #Medworks; #remount;

Crossroads Ambulance photo

#chicagoareafire.com; #ambulance; #GaryFD; #FordF550; #CrosroadsAmbulance; #Medworks; #remount;

Crossroads Ambulance photo

#chicagoareafire.com; #ambulance; #GaryFD; #FordF550; #CrosroadsAmbulance; #Medworks; #remount;

Crossroads Ambulance photo

thanks Martin