tip of the trades.. get you a highlift jack and loosen the dirt around your concrete post.. sinch the post as close as possible to the base, with a heavy cable or bike lock chain , chain with hooks or a heavey lock.. set the jack as close to the edge of the concrete base as possible and on a ( suggested 4x4 post.) jack that whole thing out! watch your fingers and use leverage! once it gets loose just roll back with the jack. use the same holes.