Lid Supports - How to select the proper one for your SkyBox, ShowCase or RocketBox Dave Updated December 23, 2017 19:29 Follow The chart below will identify which lid support is need for your box. If you do not see your box listed please contact customer support here, or by phone at 888-925-4621 M-F from 7 to 4 PT. To order the lid supports click here 8880683 or 8880684 Lid Support.pdf 2 MB Download Related articles Cracked Cargo Box How do I remove the lock cores from my box? Cargo box on factory rack How do I know if my cargo box will contact my rear hatch? Gas Lid Supports Comments 0 comments Please sign in to leave a comment.