Ford F-250 2008 Owner's Manual page 235

Tires, Wheels and Loading
Example only:
Cargo Weight – includes all weight added to the Base Curb Weight,
including cargo and optional equipment. When towing, trailer tongue load
or king pin weight is also part of cargo weight.
GAW (Gross Axle Weight) – is the total weight placed on each axle
(front and rear) – including vehicle curb weight and all payload.
235
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)