The 807 is best for the AD/ND trucks. The 800 series was for cars but it will work as well. The 1000 series will also work, it has stainless all along the leading edge of the wings. If the wings are squared off at the ends it is an 807. If the edges are rounded where it meets the cab near the drip rail it is an 800 series. I have another document that says the 603 will work too.
