The rear door on the Z Series is curved to match the styling of the cap. The third brake light, which is required by law, is recessed into the fiberglass and curved to match the cap's styling. Rotary slam-action latches allow you to open and close the door with the same motions as you use to close the truck door. The Z Series door handle features an OEM-quality lock by Strattec with a double-sided key for easy use. The lock cylinder is the same quality as the truck's.