According to the FBI's Uniform Crime Reports a vehicle was stolen every 33 seconds in the US during 2008. Ford Trucks are especially vulnerable due to the easy access to the door lock actuating rods. Tuffy Security Products now has Door Lock Protector Plates for most models of Ford Trucks in stock. These protector plates provide a heavy-duty steel barrier between the outside world and the actuating door lock assembly. Specifications and model numbers are available at:
In door lock security plates to prevent vehicle theft

We also have the Tailgate Protectors in stock to provide some extra security from tailgate theft:
Pickup truck tailgate security protectors