Abstract: A rear door assembly for a truck cap for mounting onto a truck bed is provided with a specially modified plate disposed at a lower edge of the rear door of the truck cap for cooperatively engaging protective ribs that are disposed on upper ends of tailgates of late model trucks. The enclosure plates disposed on the rear doors of the truck caps extend outwardly and downwardly so as to conform to the general shapes of said currently-available tailgate protector ribs. The enclosure plates enable the rear door to close fully and provide the requisite engagement between the lower end of the rear door and the upper end of the tailgate so as to prevent moisture and dirt from entering the inside of the truck cap.

Abstract: A vehicle body having a roof, depending sidewalls, a rear opening and a door for closing the opening wherein the door is pivotally and slidably mounted to the vehicle body by a slide mounted door hinge assembly. The assembly includes an elongated guide track affixed to the vehicle body extending perpendicularly from the opening and a hinge with a sliding leaf slidably connected to the guide track and a door leaf affixed to the door adjacent the track.