The original bucket seats like those were built using a small oil drum as the plug cut down to the shape needed for the seat and then modified from there, that's where the 2 'ribs' came from. Well let me go back, I'm not sure they were the 'first' ones done, but many years ago I saw a set tooled up like that, but they didn't hav crooked ribs.
Jim at Cyclone still offers the buckets and a back seat too.
I designed and tooled up a bench seat for a guy that was going to build a set of molds from it, and my idea was to make the mold adjustable so it had inserts in the back of it so the width could be adjusted to fit the hull. I think I built 3 different inserts, longer in 1 intervals, so the mold was a 3 piece deal instead on a one piece. It was pretty cool, and had 2 ribs in it as well but like a few others have done through the years, he screwed me outa some money, so I destroyed the plug...infront of him too. lol It was almost worth it to see the look on his face.
