Usually auto dealers have separate dept.--new car, used car, truck dept, etc. If you are buying a truck normally you would head to that dept. and ask for a truck salesperson. Than you should be able to get the correct info. Like if you go to Home Depot and want to build a storage building--you don't go to the flower dept or the lawn sprinkler dept. I have a hard time feeling sorry for folks that are going to spend a large amount of $$$'s and plead ignorance when there are so many research tools available(internet, books, magazine's, car dlr's brochures, etc.) to research. I sold cars, trucks, used cars--Chevrolet--for 20 years and found that particularly in the truck dept folks were pretty well educated in truck specs. because the vehicle was being purchased for a particular reason and generally would be used for a particular purpose. Lars