Ford F-650 Owner's Manual page 263

Maintenance and Specifications
Engine drivebelt routing
6.8L V10 engine with A/C
6.8L V10 engine - without A/C
VEHICLE IDENTIFICATION NUMBER (VIN)
The VIN is printed on the Vehicle Rating Decal attached to the vehicle
on the edge of the driver's door or B-Pillar. The VIN also serves as the
warranty number. If you ever find it necessary to communicate with Ford
Motor Company about your vehicle, always include the VIN in your
communication.
263
2012 F-650/750 (f67)
Supplement, 2nd Printing
USA (fus)