The GR8TOPS fiberglass bulkhead is as nice as its top. It fits the contours of the wheelwells and floor so it seals well. While the top is removable, the bulkhead is mounted semi-permanently. Burnsville used a quality, paintable urethane caulk as well as the supplied sheetmetal screws to install the bulkhead and ensure a weather-tight seal. Truck bedliner was sprayed in the bed and on the bulkhead that looks great and works well to protect the bed and further seal the bulkhead. If you ever want full coverage again, the GR8TOPS half hardtop can be removed and the full factory tops can be reinstalled and don't interfere with the fixed bulkhead.