38bill is correct. The ‘39 pickup headlights are just like ‘35-‘37. They are not incorporated in the fender unlike a ‘40 pickup. If you’re looking to put ‘39 passenger car headlights in your pickup, that may well work. You would need the buckets and bezels if the hole openings are the same. I also believe ‘40’s used sealed beam headlights so you would need ‘39 reflectors, bulb sockets, bulbs, etc.