These are all I have of it, on this computer anyway. The swivel was in there when I got the boat & when we redid the seats, I re-used it. I like it.....
It doesn't look to be anything special, probably could get one from a boating supply store that deals with fishing boats. Looks to me like the base of those swiveling seats like in the front of a bass boat....
The pics here show the original driver seat base, but when building the new one, I copied the basic design with only a couple of changes to beef it up some.
http://www.***boat.com/image_center/...0/seatbase.JPG
http://www.***boat.com/image_center/...riverseat2.jpg
http://www.***boat.com/image_center/...786_Small_.JPG
The swivel is through-bolted to the frame, while the holes to mount the seat have threaded inserts. That way the seat base is basically through-bolted to the swivel, you just don't have to be f*cking around trying to squeeze your hand under there with lockwashers, nuts & wrenches & stuff..... Went together real easy & so far its been very sturdy. Been run in some pretty rough water from time to time & I ain't no light-weight, LOL....
I can get you a closer shot of that first pic, showing the seat base & swivel if you like, just gotta resize the pic & crop it.... Lemme know. :rollside: