A device for bridging a gap between a tailgate and a truck bed may include an angled bridge plate having a first plate section and a second plate section, wherein the second plate section extends from the first plate section at an angle. A first tab may extend from a first side edge of the first section of the bridge plate, and a second tab may extend from a second side edge of the first section of the bridge plate. The device may also include a first bed hinge configured to attach to a surface of the truck bed adjacent to the gap, wherein the first tab is configured to pivotably engage with the first bed hinge, and a second bed hinge configured to attach to the truck bed adjacent to the gap, wherein the second tab is configured to pivotably engage with the second bed hinge.

An embodiment relates to a tailgate hinge mounting structure that includes a roof rail disposed in a width direction of a vehicle body, a rear end module connected with the roof rail, a tailgate hinge connected with the roof rail and the rear end module, and a bracket bolt connecting the roof rail. The rear end module and the tailgate hinge in a vertical direction of the vehicle body. A bracket reinforcement is provided between the roof rail and the tailgate hinge. The bracket reinforcement is insert-injected together with the rear end module.