What is the difference between a ford f 150 4 doors 5 feet 1/2 and the 6 feet 1/2?

What is the difference between a ford f 150 4 doors 5 feet 1/2 and the 6 feet 1/2?

Read more: What is the difference between a ford f 150 4 doors 5 feet 1/2 and the 6 feet 1/2?