Found at firetruckresource.com:

2013 FORD F-550 OSAGE AMBULANCE

Mileage75,370

F-550 XLT

75,370 Miles

Tires: Front & Rear 225/70 R19.5

Good Condition

Front Axle: 6,500#

Rear Axle: 13,660#

6.7L Diesel Power Stroke

Osage Aluminum Body – 177” Long

Ceiling Height: 73”

Whelen LED Emergency Lighting

Electronic Siren

OAL: 25’ 10”

#chicagoareafire.com; #ambulance; #Osage; #FordF550; #McHenryTownshipFPD;

McHenry Township FPD photo

#chicagoareafire.com; #ambulance; #Osage; #FordF550; #McHenryTownshipFPD;

McHenry Township FPD photo

#chicagoareafire.com; #ambulance; #Osage; #FordF550; #McHenryTownshipFPD;

McHenry Township FPD photo

thanks Martin