These bedsides have a 4″ flare 3″ rise. More of a smoother styling bedside. Can use the tailgate with our bedsides. Does not have a fuel fill are built in, but we do offer a universal gas pod or a factory stye one for an additional cost. Does require the removal of the factory sides, and can be either bolted on or bonded on.And the items are all “Hand Laid” to ensure quality workmanship and prevent warpage,and are all made here in the USA.