Remove the bench, just pulls out. The back is on a glassed sheet of plywood. Once the bench is off the back will slide up, no screws or bolts. The sides have studs that come through the fiberglass and have nuts on the back. You can access them once the back rest is off. While you have the back off I would change out the fuel sending unit to a digital probe style. If I remember correctly is either 8 or 9". If you do a search on here you can get the company that we have all used. Lastly while the back is off tighten down the back grab handle. It's easier to get at with the back rest off. Lastly grease the rudder zirk while everything is open.