Millenium B100

anybody know if the millenium b100 seats will sit in just flush in a bench style base? or do they have to have a post extended on them to fit? The reason I ask is because looking at pics that metal frame on the bottom of the seat looks like it will not allow it to fit into my pedestal base in the back of my boat that I use for when im driving my tiller steer motor

Sure it will....Just remove the 3/4 dia. pin base from your seat you have now and bolt it to the base of the millenium seat ( with the 4 new bolts that are included with the new seat).....then just put the pin in the hole just like your old seat.