I just purchased my first bass boat (P4), and the front power pro(swivel eze) seat shaft doesnt work, so I wanted to replace with a new one. Purchased one (swivel eze) black seat bracket locally and when inserted into the black bushing, the shaft doesnt go all the way down to the shaft base. My new shaft has a threaded end. The old one didnt have the threaded end, which made it shorter and it slid all the way down. What kind does BCB sell? The front boat seat pole through the floor seems like its not hollow, but has a rounded metal bottom about 1″ below the bushing. I pulled the broken white bushing from the rear seat, and it was hollow all the way down. Thanks for you time, I have already learned so much about the boat from this website, and Im so excited about fishing my first tourney.