Howdy Steve.
Up for sale are 2 Springfield Marine part #1640203 seat bases and 1 Springfield Marine part #1640403 15-1/2" post that requires a 1.77 post base. $110 for all three or $40 each. I will ship on your dime.
Howdy Steve.
Creativity is just intelligence fooling around
ttt
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va