Left.CREW CAB. Right.CREW CAB. Side rail nut. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Tailgate Molding. Nut used to secure the luggage carrier side rail. Roof Luggage Carrier Support Nut. Roof Molding Nut. Tail Light Nut. Luggage CARRIER. Edge retainer. Roof Luggage Carrier Support. Side rail. Tail lamp retainer. Tail Light. Tailgate. Included with: Carrier assembly.